Classic just now. Phonecall to my dad.
"Hello is this Charlie?"
"Yes..."
"Hi this is Chris Tarrant from Who Wants to be a Millionaire, good evening!"
"Oh!"
"Your mate Dave is here, he's stuck on a 32,000 pound question, can you help him out?"
"Go on"
"What day is it today? A. Xmas Day, B. Boxing Day, C. Groundhog Day, or D...."
"Oh no...."
"APRIL FOOL'S DAY!"