A few years ago i had 2 bright sparks leave me to work for themselves , they had no car between them ( or licence etc ) , milk crate instead of A frame ladder , they somehow lasted a couple of months with very little work , they did canvass some of mine but i dont remember them getting any of them. I know for a fact that one of them was basically out of work for a couple of years after that .....because he told me when he phoned apologising and almost begging for a job at his previous rate of pay or less ! Of course i said no !!
One problem i had once was , when i went on holiday a few years ago a newish guy went and collected about £250 for himself and dissapeared , obviously i couldnt recharge the customers as they were just paying for work they had already had , and the police were absolutely useless , saying each of these individual customers could try and sue him in court for each fraud !!!