Had an actual
moment!
In a large home store type place with friends and DCs. Get to end of an aisle and stop as DCs ask to go and look at toys. That's fine we say and just setting some 'ground rules' (reminders of behaviour.)
I see something hanging on end of shelf and exclaim how interesting it is. Then walk on obviously looking ahead where I'm going.
A voice behind me shouts...
"I'll pick up what you've dropped then shall I?"
Confused I look under trolley and say "oh thanks what did I drop?"
"You know exactly what it is I saw you kick it away"
"EH?"
"This item, I saw you drop it on the floor and kick it under shelf" (it's one of the items I'd just pointed out to friend.
"Oh sorry I hadn't noticed I'd knocked one on floor but I certainly didn't kick something"
"I saw you - you deliberately dropped it and kicked it" 
"Well you need to get your attitude checked along with your eyesight, I can accept I accidently knocked something, even walked over it without noticing but that gives you no right to tell me off publically because you've judged a situation incorrectly from afar"
The bloke then had the audacity to tell me I had no right to speak to him like that 
The smirk on his OH face when I did made me think he's a twat and very few people stand up to him.
I think I was perfectly justified btw 