The "Microsoft" guys can be lots of fun. I usually run them through a who's on first sort of routine.
"I'm calling about your windows computer"
"Which one"
"Your windows computer"
"yes, but which one? You say it's infested with viruses, you should know which one"
"your computer with windows xp, 7, 8, or 10"
"Sure, which one of those"
"Any of them"
"Right.....but which one are you calling about"
Longest I got was a bit over 10 minutes, got into a bit of technical questions that he couldn't answer. When I laughed and told him he really had no idea what he was talking about he got mad and put on his supervisor who got very rude. THAT was even more fun! especially since he had a decent grasp of less formal English. Finally ended when he called me a MFer and I replied with a joyous "Son! It's good to know you're doing well! " That brought a bunch of angry non English and he hung up
Steve B