This explains us males

Watching 24 hours in A&E.
A married couple were waiting to be seen.
Wife says, "What shall we talk about"?
Husband "No need to talk about anything"
After a couple of minutes wife once again says "What shall we talk about"?
Husband "If you ask an interesting question then I will answer. There is no reason for me to talk otherwise"

Later, husband goes to the toilet
Wife asks, "Did you do a number two"?
Husband "No, all I done was a big horse fart"
They both burst into laughter.