What is small, red, and sitting in the corner?
A baby playing with a scalpel.
Baby With Scalpel
Explanation
Explain Bear
Alright, listen up, buttercup. The joke is funny because babies aren't supposed to be playing with scalpels. Scalpels are sharp and dangerous. If a baby is playing with one, it's unexpected and kinda messed up. Plus, the "red" part makes you think of blood. Get it now, genius?