The least I could do

One day, two guys Joe and Bob were out fishing.

A funeral service passes over the bridge they're fishing by, and Bob takes off his hat and puts it over his heart. He does this until the funeral service passes by.

Joe then said "Gee Bob, I didn't know you had it in you!"

Bob then replies, " It's the least I could do. After all I was married to her for 30 years."