I know he meant well, but he really pissed me off!
I had a bunch of stuff in my trolley - about 60 items... shower gels, shampoos, chocolate bars, crisps, talc, washing powder, fruit, cream crackers, tinned food, veg, frozen food, fridge food (like milk and yogurts,) bread, etc. I pushed the trolley back to my car and I started pulling everything out of the boot, and opened my cool bag for the fridge and freezer stuff. I had bathroom and kitchen stuff, smelly stuff, frozen items, fridge items, tins, packets that would easily crush, so was taking my time.
I had packed about a third of my stuff away, and this guy comes up to me and says 'can I take your trolley Madam?' I said 'er no thanks, I am still unpacking...' He said 'I'll wait,' and stood there while I carried on pulling the stuff out (and making me feel under pressure to hurry!) 
So then I said 'the joints in my hands are a bit inflamed today, so I will take a while putting it all away, so it's OK I don't need you to take the trolley, I can take it back in a few minutes......' So then he said 'I will help you then,' and proceeded to start picking my foodstuffs and goods out of my trolley, and shoving it all over my car boot. Tins of beans on top of my bloody crisps and cream crackers and all sorts! 
Which are now somewhat crushed!
So I gathered up everything as quick as poss, and lumped it all in the boot just to get rid of him!
'Here's the trolley then' I said. 'There you go, saved you a job taking it back haven't I?' he said smugly!
The more I thought about it, the more bloody annoyed I got. I TOLD him I didn't need - or want his help, and he kept pushing and pushing, making me feel flustered and rushed and irritated.
So if any MORRISONS manager is reading this, please tell your staff to not do stuff like this! If you offer someone help, and they say 'no thank you,' respect their decision. Don't push it on them. It's patronising and rude, and puts people under pressure.
To add insult to injury, because I was irritated and flustered, I didn't zip up my cool bag, and my frozen food had started to thaw out by the time I got home!
Sorry, I needed to rant somewhere about this! And hopefully someone from Morrisons sees it!
(nc for this by the way. Didn't want to use my regular username sorry!)