Someone at my work took a call on my phone and the person gave them a hard task so she put the handset on the desk and then pressed the hold button on her phone and called the guy a wanker!!!!! Not realising she had pressed the button on her phone and not mine.

Oh the backtracking she had to do that day!!!!!!!!

Was very funny as she went scarlet.

Someone else in the office suspected two people of having an affair so sent an email to her pal saying how stupid they were having an affair etc etc but actually sent it to the girl being suspected