Put your hand in the bell and play a lot of wrong notes.
or
They can't find the key, and they never know when to come in.
or
He made an illegal ewe turn.
or
Because he was caught tweeting on a test.
or
but unfortunately she'd popped her clogs.
or
It doesn't matter, they don't have any electricity any more.
or
By paying them to cheer for him during campaign events.
or
Because there's no one else to wag it for him.
or
That's not a miracle. That's tapas.
or
Twenty. One to hold the bulb, two to turn the ladder, and 17 to be on the guest list.
or