At the Heathrow Airport, an American was talking to a Brit.

American: I need to lose weight.

Brit: Oh really? What’s your weight?

American: I’m 198 pounds. I need to lose 10% of my weight.

Brit: When did you weigh yourself?

American: Last week. Why? Does it matter?

Brit:  We had our referendum last week. The pound dropped more than 10% in value. You have succeeded now.