Question: Why can't you trust a tree?
Answer: 'Cause they are always shady.
Shady Tree
Explanation
Explain Bear
Listen up, buttercup. This joke is funny 'cause it uses the word "shady" in two different ways. Trees give shade, right? But "shady" also means someone is untrustworthy. Get it? You probably don't since your brain is made of mashed potatos.