Just can't get enough bad (but clean) jokes?

[Aranea]

An atom walks into a bar, trips, and falls down. As he gets up, he cries “Oh no, I’ve knocked off an electron!” Bartender says “Are you sure?” Atom replies “Yeah, I’m positive.”

A neutron walks into a bar and orders a drink. He asks the bartender “How much?” Bartender says “For you, no charge.”

[Askance]

*Originally posted by Chefguy *
**What do you call a boomerang that won’t come back? A friggin’ stick. **

Doesn’t work as a joke - most types of boomerang are designed not to come back, but to kill what they hit.
What sounds like a dog, smells like a skunk, and looks like a bear?

A dog, a skunk and a bear.