Looking for some useful tips on how to incorporate humor into work-related situations, without risking your job?
It might be worth doing some more research into understanding how jokes work, but this post on smartblogs.com is a good primer. I think it's especially relevant to advertising. Think of how many 30-second TV spots manage to be funny, not by spelling something out, but by surprising you, or letting you make your own connection, or both.
Take a look at the post - and, of course, if you like your job, follow the advice and stay away from jokes about race, religion, or sexual orientation.