Warning, this joke contains sex and violence
A guy sends a text to his next-door neighbor:
"Bob, I'm sorry. I've been riddled with guilt and I have to confess: I have been helping myself to your wife when you're not around, probably more than you. I know it's no excuse but I don't get it at home. I can't live with the guilt any longer. I hope you'll accept my sincerest apology. It won't happen again."
Feeling outrage and betrayed, Bob grabs his gun, goes into the bedroom, and without a word, shoots his wife.
Moments later the guy gets a second text: "Really should use spell check! That should be 'wifi'."