@ redobin don't assume if you knew anything you would know that I'm not a fan of Percy's Damian how he's regressed him and is experminenting with a great character.
I understand every writer has the right to tell his own story but to regress a character because you think it'll be neat to play isn't cool and a team book should be just that.
@fergus is correct. If Gar has a problem then address it. Going on and on every issue just makes him a bully and a bore. Talk to Damian or mention it to your teammates and then let them use the info as they wish.
You certainly don't bring it up when the team is going into battle or have pressing matters to hand.
Damian was a pro and dealt with Riddler in a manner worthy of his pedigree.
Saying that Gar is being a beast doesn't mean that Damian is a saint however it's getting tedious.