I can't think of anything

People posting in the wrong forum?

Connecting your BluRay player to your AV amp and TV?

Buying a soundbar without checking that your tv has the correct outputs to match the soundbar's inputs and then having to explain why you have to return it to the shop assistant...

Failure of imagination by the OP here.

Is this supposed to be in Chatter ?

Doh! Woops

Getting divorced.

Keeping it and running it!