People who act like it's the worst thing in the world and that I should move my ass because I'm siting in their normal seat.
No worry in my house because if you sit in my chair I won't act like it's the worst thing ever, I'll just tell you that is where I sit and kindly offer you another and more comfortable spot. You will then move out of the kindness of your heart while I get you some cookies or a slice of pie.
Hey, those two drops of milk are for my coffee.

OT:
- Old people / Middle-aged people who can't use a self-checkout machine. Store employees who stand next to self-checkout machines to help said people.
But what if those two drops of milk really are for someones coffee. Would you want to face them in the morning if their coffee isn't right?
Expecting an old person to be able to use a self checkout machine is like expecting a young person to know how to use a slide rule. Most my age can barely turn on a computer or have never tried and have no desire to.

They don't even try though. They walk up to the machine, their eyes glaze over, and their heads swivel around like gophers, looking for someone to help them out. Then they pull out a wad of coupons and immediately try to hand them to whoever gets too close.
The machine tells you exactly what to do - and when! It's an automated instruction manual!
Why should we try if we don't approve of that service. We want to give someone a job to do it for us. We believe in good customer service. I have used them on a couple of occasions but despise self check out. Not because I can't but because I don't believe cutting jobs by using machines is good for our economy nor that it should be a problem for an employee being paid to offer customer service to assist me as I spend my hard earned cash. After all he/she will be payed for the time he/she assists me the same as they will be paid to do their other duties. Be happy we old folks are here to give you a job.

Expecting old people to be able to read those screens is pretty unrealistic considering how many visual problems are associated with the aging process.
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I'm pretty annoyed when someone uses a knife in a jar of my jam or jelly. I don't like it all chopped up. I want each spoonful to look pretty and undisturbed like the first spoonful does. I've a jelly spoon just for that purpose.
And I'm not to happy with people who show disrespect to others who of different opinions than their own and don't understand the difference between subjective and objective data.
Placing labels on people is a bit annoying as well. Label cans not people.