Old Men in Thongs
Reason for annoyance:
"You're making us feel sick and you're giving the children nightmares!"
About Old Men in Thongs:
Get off our beaches and away from the side of our pool! ... you're making us feel sick and you're giving the children nightmares!
Nobody and I mean nobody wants to see your wrinkly arse wondering around whilst they are on holiday. Get some proper shorts to cover yourself up and have some respect in your old age. Yes you may be golden brown right to the inside of your arse cheeks but there is no need to show this to everyone, keep this to the privacy of your own bedroom or padded cell.
Besides, surely they are not comfy??
FACT: Old Men in Thongs are more irritating than Parking in Parent Spaces without Children but less irritating than Fast Food Restaurants
You may also find Bin Men irritating.