Yep, this happened to me on my first ride. Tried to climb a hill I wasn't ready for and looped it. Same thing, I thought, how did I bend my Renthals. Then my buddy grabbed the bars and tweaked them back.
I thought about replacing them, but then again, thought that perhaps this little bit of give is a good thing, I can just pull up to a tree and whack the front wheel to straigthen it.
They only get whacked out of line when I really dump it.
Kind of like not clamping down your levers so tight they pop off when you crash.
-MD