Similar to your plane story, we decided to book last minute break to Cyprus in May 2013 from Manchester, got sat down on the plane and hear this booming voice coming down the plane "who's the poor bastard that's got me sat with them" see this absolutely huge bloke followed by his Mrs who sat row behind and yes he gets sat next to me, warns me he snores like mad and proceeds to take up half of my seat space with his overflow, the flight was horrendous, he was fast asleep after knocking back 5 lagers and a whisky chaser, he was so big I was literally jammed in my seat unable to move.
3 years later, going to Menorca in October from Leeds airport, getting sat down and I hear that voice again, me and the Mrs looked at each other and thought surely it can't be him but it bloody well was though, his Wife in tow who must always sit row behind him as she knows how bad it is to be sat with him, he ended up a row behind us and told the lass he was sat next to the entire same routine, couldn't believe it, different time of year, different Country, different airport.