Ok let's be clear here.
1. Yes this was a pensioner.
2. No they are not senile.
3. No dementia is involved
Remember next time you think "aww the poor old man or lady has lost their marbles" we are totally sane. We do things like this for no other reason than to WIND YOU UP! Why? BECAUSE WE GET AWAY WITH IT !
Nuuurrrrgggggghhh!