ha! Same here. I was sent notifications from a military application once (seemed to be some SAP style system). I responded to a CCd email and they politely responded and corrected the address.

The others are more mundane. Mailing lists with dirty jokes from a group of american dentist friends. School notifications from a guy in the UK. Random baby pics.

Im not sure if there are lots of people with the same name who occasionally get their mail wrong. Or a few people with the same name who constantly do. It just seems weird though. Surely if you had a non firstname.lastname@gmail address you would take extra care to add in the extra padding.