I was playing with my little dog and his big dog friend off the lead on a little patch of grass. Then a brass band came and scared the living daylights out of him and he bolted! I was terrified running after him (he's much faster than me!) and calling him, panicking about what if he got hurt or stolen. Found him a couple of hundred yards away in someone's arms, who handed him over safe and sound, I was so relieved! (And never made the mistake of thinking he could go off lead there again!)
Also the dog, walking along by the water, one minute he's pottering along next to me, the next he's somehow fallen over the side and is dangling by his harness and lead! Thankfully he hadn't even got wet feet and I could easily lift him up (thank god his lead was on fixed not retractable!) but a family was passing and were concerned for him and the teenage daughter said she'd have jumped in to save him
I was at a scout camp last year volunteering and was taken ill (threw up on the grass outside my team "office") on the first day. I was mortified, crying with embarrassment, but everyone was SO kind to me and looked after me, my team leader came to check on me and reassure me nobody minded and I just cried more. They were even good enough not to mention it again apart from asking if I was better the following day (I was and managed the rest of the week without incident!)
A really tiny one but that's stuck with me, I have scars on my arm from self harming. I only worry about covering up any fresh wounds, so the scars are on show most of the time and hardly anyone notices (or if they do they don't mention it!). I was only 21, working in a shop and a little old lady asked me what I'd done to my arm. As usual I said "nothing", and she just said "it's ok dear" I'm a voice that to me at least sounded like she knew the truth, was kind enough not to mention it, and was reassuring me that things would be ok. Now I don't know whether that's true or not but it felt like it and I've never forgotten her voice saying it.