Tonight is my treat

Bob: Did you enjoy your dinner ?

Nancy: Yeah ,it was great .Should we get the check ?

Bob: Yeah .Excuse me ,waiter? Could we get the check ?

Waiter:Sure ,right away .

Nancy: Thanks for taking me out, Bob .Show we split the bill ?

Bob: No,tonight is my treat !You took me out last week ,remember ?

Nancy: OK ,well let me get a tip then.

Bob: Alright ,that sounds fair .

Waiter:OK ,folks.The bill is $50.25 .

Bob: Do you take credit cards ?

Waiter:Sorry ,cash only .

Nancy: How much should I tip ,Bob?

Bob: I usually do 20%

31'