Did Jesus ever sin?

I don't quite get this "separate" entity notion belief, of someone else sacrificing themselves for others actions—or sins as the church calls it—and behaviors. It appears all rather abstract, nonsensical, naïve, silly and absurd to my perception of what our lives are about and what we are here for. Christ was a teacher\guru, who was leading by example and who understood the power of the ego dominated mind and the transcendence of it. He wasn't divine above all others, only leading the way into it for others who cared to follow and find their own divine within. Christ knew it was all whole and one and complete and connected. There is no separate level of divinity, compared to another. Responsibility for our own lives, is taken upon that life itself, not for someone else to do it for you. That is just a cop-out.     

Is being angry, or very indignant if you want to have it that way, at something which cannot but help its nature a righteous act?

...as long as the bear doesn't get the park ranger first...

Bears can run up to 40 miles per hour. That park ranger doesn't have a chance...

Well, there was that one time when Jesus attended a bachelor party.

It’s hard to pin down the specifics, because what happens in Cana - stays in Cana.

Makes for a good fairy tale, though

But it is convoluted and absurd. People are just too afraid to let go of their delusional beliefs.

Although the answer is, generally supposedly 'no'. However, theologians have discussed it at length. In technical terms, “impeccability” is the doctrine that Christ could not sin, though he could be (and was) tempted. There also I think remains the interesting moment when Jesus curses a fig tree for, in effect, not being able to change its nature or condition (which, presumably God, er, Jesus made in the first place!) just to please Him:

While, yes, Christ manages immediately after the cursing to draw out a lesson, it is notable in that He quickly suggests that a. impossible things can be realised through faith and b. as long as you believe whatever is asked for will be granted. Since neither of these things are evidenced in real life (the mountains moving of the former is really over the top in what one can reasonably expect, while the latter in particular goes against the spirit of Eccl:9 1-12 for instance, the idea that God does not micromanage), a less charitable view of the passage is that Christ's curse was through a fit of pique - since there were no figs to be had when He desired some - and then He went to make a hastily erected moral out his outburst which was dutifully recorded. The disciples were, understandably astonished at His outburst and need assuaging. Remember it would be very difficult to argue that His anger was planned in advance just so as to provide instruction. But anyway, since Christ was assuming that figs ought to be available for Him, and was angry because not, then here He can be judged guilty of pride. It is also debatable whether JC's rage was justified anger in the first place, either and really was just a temper - which runs against "don't sin by letting anger control you." of Eph. 4:26...

On another note, it is possible to argue that Christ's death was something of a suicide, since he foresaw his death (and hence could have avoided it) and even later could have saved himself by a miracle (if faith can move mountains then it surely can pop out a few nails). And suicide we are told, is a sin.

1. Jesus is not the religious teaching. He's the teacher 

2. Jesus could sin because he is beholden to God's standards as a human

3. God cannot sin, but he could err against his own standards but hasn't done so. Actually, he may not even be able to err against his standards since one of his limitations is he cannot lie.

I'm not disagreeing with you as such, just merely a comment on what a sin was and Jesus' teachings are things that get to define what a sin is. I'm an atheist so I don't believe your 2 and 3.