Here’s a log of an actual IM conversation between my friend Steve (playing the role of VirtualSmitty) and his brother, as SmittysPetShop.
VirtualSmitty: why did you just send me that?
SmittysPetShop: so you could check out
VirtualSmitty: but i sent it to you
VirtualSmitty: just before you sent it to me
VirtualSmitty: did you forget who sent it to you?
SmittysPetShop: ohh yeah
SmittysPetShop: that was funny