Mom in Florida

A man calls his mother in Florida.

- Mom, how are you?

- Not too good - says the mother. I've been very weak.

The son says:

- Why are you so weak?

She says:

- Because I haven't eaten in 38 days.

The man says:

- That's terrible. Why haven't you eaten in 38 days?

The mother answers:

- Because I didn't want my mouth to be filled with food if you should call.