Ok Ok I've got another one... (this may have been mentioned before so I will apologise in advance)....
What really GRINDS my gears...
You pull up to a petrol station and all the bowsers are taken.
You pick a car to park behind and patiently wait while the car in front is filling up.
Two long minutes have gone by and they are still filling up. Everyone else is now walking towards the shop to pay.
Another two long minutes have gone by and they are finally putting the filler cap back on. They then reach into the car to get their wallet/purse and walk off to the shop.
Phew, shouldn't be much longer now you're thinking...waiting... waiting... really starting to get those gears grinding... what could they be doing?.... OMG - Nooooo.... they must be getting milk or something.... waiting... waiting... OMG... It can't be happening. I don't believe it. They have decided to do a weekly shop!! Meanwhile the bowsers have seen another set of cars and you're still waiting!
Finally, they pay and walk out of the shop and look at you as if they didn't even realise you were parked behind them, WAITING!