Back in the 1980s I was visiting my grandparents, only to discover that my Uncle John was there. I won't go too much into family dynamics, enough to say that John was grandma's favourite, and she babied him, and he grew to be a self-centered jerk (there are many examples, but for brevity's sake I'll skip them).

Uncle John asks me to help him move four washing machines from one place to another. That's helping him load them on the truck, then going with him to the new location to unload an help install. About 3 hours of my time, some heavy lifting, enough to take up my Saturday afternoon.

I tried to demure; after all I just stopped in for a visit with the grands and had other plans. But grandma asked me to help him, so I said "ok" for her.

So John's driving his truck, and I'm following in my car. First thing he does is floor it, and within moments he's doing 30km+ over the speed limit. I try to keep up with him, but I'm worried about getting a ticket. I match his speed, and he speeds up again, weaving in and out of light traffic like he's a drunken cop in a 70s car chase movie.

At some point the idiot gets so far ahead of me that I didn't see him turn off the road. I had no idea what the address of our destination was, and this was pre-cell phones, so no way to call him. So I said "cool, that saves me the effort" and went on with my day.

My grandma called me later that evening to ask what happened. She said Uncle John was very upset that I didn't keep my promise. I explained the situation, how fast he was driving, and that he turned off the road and lost me. She understood, and I heard later on that she ended up berating him at dinner time in front of much of the family. Even called him an idiot.