I have that t-shirt.
We put a scrapyard oil guage on a m8's mini back in the early 90's .. And forgot the sender. That jetted a nice stream of crude all over his mum and dads nice clean driveway
And 5 years ago I had been doing some work on our MK1 golf. I got in to check it ran ok. It started nicely. And then I got all confused as the world went dark and the windscreen became dark. The oil line from the guage had split
That took a bit of washing down.
TT