I have a colleague who only works part-time. It's a good thing for him, as he came out of retirement to do the job. It's also a good thing for the company, as they don't want a full-timer.
Dave's a decent enough bloke, but he couldn't, to quote Terry Pratchett's Soul Music, carry a tune in a bucket. He can't even whistle tunefully. Seriously, it's almost painful. For someone like me, a person that needs a bit of music in the background, that needs the flow of music to be right, it really does verge on the painful.
Even worse, his grasp of lyrics is tenuous beyond belief. Again, to me, this is like fingernails down the chalkboard of my soul.
Some years ago, when the Bob Marley track Iron Lion Zion was suddenly a massive hit, I was living at my parents' house and they were having some work done on it. Unfortunately, I was working a night shift and trying to sleep through hot summer days with a workman listening to the radio and trying to sing along with Bob. Even more unluckily, the only words he knew were 'iron', 'lion' and 'Zion'. Even worse, they were out of tune too. Commercial radio being what it is, the song was repeated ad nauseum, and I got very little sleep.
Back in the present day, I was packing some boxes, when Dave came along, 'singing' along to Duran Duran...
Well, it beats "lalalalalaa", I suppose...
Here's the original - clean - video.