"Heart Attack" joke

A man comes home early from work and hears strange noises
coming from the bedroom. He rushes upstairs to find his wife
naked on the bed, sweating and panting. "What's up?" he says.
"I'm having a heart attack," cries the woman. He rushes
downstairs to grab the phone, but just as he's dialing, his
4-year-old son comes up and says, "Daddy! Daddy! Uncle Mick's
hiding in your wardrobe and he's got no clothes on!"
The guy slams the phone down and storms upstairs into the
bedroom, past his screaming wife, and rips open the wardrobe
door. Sure enough, there is his brother, totally naked, cowering
on the wardrobe floor.
"You bonehead!," says the husband, "my wife's having a heart
attack and you're running around with no clothes on scaring the
kids!"