Take that, Glenn Greenwald—PSY might not have droned some kid in Yemen, but he’s killed someone dead all the same:

The death of a father-of-three who collapsed while dancing to Gangnam Style has prompted a warning to middle-aged men not to attempt the vigorous dance from the hit video.

Eamonn Kilbride, 46, collapsed with chest pains at his office party in Blackburn last weekend after performing the dance moves made famous by the South Korean rapper Psy, who mimics riding a horse.

Professor Bernard Keavney, a consultant cardiologist at Newcastle University, has warned older men not to “stray outside your comfort zone” while dancing at their Christmas parties this year.

You’ve been warned.