A man received an e-mail from his neighbour which said:
Sorry Jim, but I have been taking advantage of your wife... day and night whenever you've not been at home.
In fact, probably more than you. I'm confessing now because I feel really guilty.
I will ask your permission in the future.
Upon reading this, Jim gets his gun and, without uttering a word, he shoots his wife.
A few minutes later he receives another e-mail:
"Sorry Jim: I meant 'wifi,' not 'wife.'"