Yes, Billy strikes again!

Pardon me for stepping in here...but I'd think Shakespeare might have an eloquent phrase or two of interest in my quest (see my post below).

Does anyone have any humorous (or just good) phrases for those forays that young men take to prove their worth? I'm interested in phrases, slang terms, or coulourful descriptions about men proving or establishing themselves. Early battles and quests. Marking out turf.

Thank you.