A woman goes to see her psychiatrist.

She says, “Doctor, I keep having dreams about my childhood camping trips.  I can’t get rid of this nostalgia.”

The psychiatrist nods.  “I think I see your problem. You’re stuck living in the past tents.”

What’s So Funny?

The expression “past tents” (former tents) sounds like “past tense” (grammar expression for “past time”).