Beth's mother visits, bearing an unusual Christmas gift.

If ever Beth would leave Dave when he's sick, it would be to see the musical ""Camelot"" -- or to attend the funeral of an aunt she barely knew.

Beth and Julie are shocked to learn their mom is still sexually active and has been spending some romantic quality time with a delivery man.

On Mother's Day, Dave's family and friends recall past celebrations -- including the time Kenny's mother questioned his sexual orientation.