OK, so you sent your friend randomly generated text and they are really angry that you wasted so much of their time.  Why not send them a note of apology - only type it upside down.  The results aren't perfect, but hey, this isn't about perfection it's about letting your friend know that you are thinking of them.

Just be careful not to send any notes to people with bad necks who regularly attend a chiropractor.  Turning yoru head to red upside down itsn't for every one.

'uo!+nec +eajb y+!m asn ´hlsno!jaS