If I had a gun I'd shoot you in the foot =D j/k. They don't give you bitch tits, and don't worry if you see your chest getting too big, I don't that will ever happen, all you have to do is neglect them!
I get that a lot, people want to exercise because they don't want to get "too big"--somehow everyone who doesn't workout thinks it's easy to get as big as a bodybuilder =D overnight.
I actually had someone say "I don't want to work out my abs with weights. I don't I want to end up having a huge six-pack like Hulk Hogan" and he was talking about the "Hogan Knows Best"-retired Hogan.