My worst tenants were two lovely irish lads traight from uni in Ireland. Mammy had done everything for them since they were born.
The flat was left uncleaned, in a year it had never ocurred to them to move,even a dining chair when cleaning. It took months for them to get duvet covers so the bedding had to be replaced. They left the grill on overnight and melted all the burner taps.
Finally, after I had charged them for the professional cleaning, new duvets etc and returned what was left of their deposit I got the elelctrician in to get the necessary certificates and he found that the Consumer Uint in a dangerous state following the grill left on incident - another£400- which it was too late to recover.
As I said lovely lads, completely well meaning but having had their mothers do everything for them for 21 years, is ignorant as a new born babes when it came to matters domestic.