A lot of these people don't KNOW they are poorly rehearsed etc. But they are frequently quite nice people. they see ones ability to remember the words of a song - usually without a prompt and the ability to keep an accompaniment going as some sort of magical powers one possesses - rather than a reflection of the time you spend practising - something you would rather do , than watch coronation street.

still these people are quite nice and they are keen to perform, and that's not a wicked urge - like wanting to shoot people or something. And frequently they attempt stuff that you wouldn't, because you know its hard. And that can be interesting - not very entertaining, but interesting...like talking to someone and they bring up an interesting topic.