Unwrap the condom and roll it down the tailpipe. We want it secure, so don't be shy.

If your using a lubricated condom, consider adding some sellotape to stop it flying off when the engine starts.A bit of advice that could save us all some trouble.

Adding a bit glitter to the condom will make the prank really sparkle. But make sure it's parked in a drive, you don't want civilian casualties.

Now your done just sit back and wait for the bang.