Nothing, you can't cross a vector and a scalar.
Question: Why did the Skeleton cross the road? Answer: To go to the body shop.
A: A gulp. It's like a swallow, only bigger.
Nothing you can't cross a vector with a scaler.
Fancy a bite
Nothing, you can't cross a scaler with a vector.
Yoda-ling
Nothing. You can't cross a scaler and a vector.
Nothing! You can't cross scalars and vectors.
Nothing, you can't cross a vector by a scalar. EDIT: changed multiply to cross.