I think you are right. It really isn't worth losing what he has gained. That bully is just begging for a reaction. I would just remind your son that fighting with this other kid would be beneath him. That kid doesnt deserve the attention he wants.

thanks dahlia!

It amazes me you're a parent and even asking that question, fighting is wrong,just lands you in jail or worse. I raised my kids not to fight, well there doing great.

well, that's good and glad it worked for your family. because i have always told my kids to turn the other cheek, my youngest son has been kicked in the head so hard that a shoeprint bruise was left on his cheek. sometimes people have to stand up for themselves...so now i tell them if someone punches first than fight back and defend yourself. i've also told them they can't throw the first punch...

No he should not fight for several reasons, I feel.
1. He is old enough to be able to articulate his feelings verbally and confront this in a logical manner. Give him guidence on who he should talk to that can help educe the other boys bullying in a non-direct way.
2. There is a rule of fighting I use to win every time. DON'T FIGHT. Walk away from it if you can. Even if you would win the fight, you still lost to your own aggresion. Now, rule number 2 is, DON'T LOOSE. If you must fight, and I believe all men get in at least one that is unavoidable, make sure that you win by using every dirty, rotten, low-down, cheap and dishonnorable trick you can to win. If you must fight, then you must be in grave danger.
3. This other boy will not be affected in anyway other than pain or scars, and most definately will not change his behaivior.
4. It might be construed that your son is a bully too, the definition being one who uses violence to control things. It's bully cowards that go after the weak. This other boy it seems is a bully coward.
5. Your son may loose or get jumped in retaliation. NOT A GOOD THING FOR ANYONE.

All that being said, Maybe he could challenge the boy to a boxing match at a local gym. there would be rules and referees and medical care on hand, and both children MUST explain there side of the issue before fighting. I think that he should not fight if at all possable, unless he must to defend himself or someone in danger.

And one last thing, It is importent that he also NOT let this go or turn the other cheek. If he is rightfully angry at this other boy for a justifiable reason. GOOD! Thats normal and healthy. It's how he expresses the anger that can be unhealthy.

No in this case I he shouldn't fight the guy, the guy is a dick and nothing is really going to change that, sadly-except perhaps time and nobody knows how long-I was teased a lot as a child from preschool-middle school I was the target, but my middle school I'd learned to laugh at it-it didn't really bother me anymore. But there was this main boy who did it the most and I obviously just ignored/laughed at him he kept this up and then one day, we're sitting there in gym (the whole class but it was rollcall and we were near each other) and he just like starts shooting the breeze with me! I went along and then a minute later I asked him why he had always been so mean to me and he said "I don't know" now we didn't become friends or anything but he didn't make fun of me anymore.