I have a mate just like this, his alty belt on his pug 106 had been squealing for ages i told him to get it fixed but would he listen noooooooooooooo so one night he comes upto me saying that squealing noise has stopped lol i look in his engine and guess what no belt the bloody things snapped, i tell him to get it fixed the next day and not to drive it at all.
Two days later i see him he's still driving it

finally manage to get across to him that his car will break down if he dont fix it so he only goes and buys a new belt and trys to do it himself which of course he cant do so drives to work in it again.
Then when im driving home from work at 6 i get a phone call can you pick me up my cars broke down so i drive home (20mins) pick up the tow rope then drive to where he is (20mins) tow him home, fix his car, he gets in it and says thanks and just drives off
The thing that makes me so angry about this is the next day i ask for a lift off him coz me and the mrs are going clubbing he wants paying
No more help for him on his shitbox
Phew rant over