Funny bumper-sticker ideas...

[BobbiSueEllen]

I always liked “ Subvert the dominant paradigm.”

If that's anything like Teal'c saying "Be silent or I'll punch a wormhole through your event horizon", I'll be very badly disappointed.

 

[AttilaThePun]

Real bumper sticker that's been around a long time: "Back off, or I'll flick a booger on your windshield!"

 

[Deleted member 58849]

Best bumper stickers are the ones of zombies, dinosaurs, etc, eating the typical stick figure family.

 

[babybenji]

My big brother has a m16 and he’s a navy seal, be nice to little