Im going to switch this around a bit, I myself have had many heartbreaking moments. But this story is about me being on the receiving end.
Where: W2 Falador (before the GE)
I was attempting to sell my mask for a decent profit in the area were all the rares are sold and all of a sudden i see a pile of money appear right next to me.
I happen to click it instantly and check my inventory, i had just picked up 300M
It was dropped on accident by a player merching white party hats, He had just gotten a random even where he got a sapphire and accidently dropped the money instead of the gem