I'm medically handicapped. I sometimes go through periods where I struggle with neurological impairment.

During one such period, I complained to my son that putting my damn shoes on had become the hardest part of my day. He said "Shoes! How the fuck do they work?"

I died laughing and snickered about it for weeks. Some acquaintance had recently been a jerk to me about something I had said that they didn't get and had given me the pity treatment instead of laughing with me (not at me). My son's joke sympathized with my frustration without pissing on me and it was very, very welcome.