I used to work in sales for a company called In-Tuition computer training in central London. I was 20 years old getting up at 5 am and coming home at 9pm, it started off ok, and I did relatively well out of it, I was getting tired though and I had a boss who used my naivety to bully me and make my day harder. My sales targets kept getting bigger, the better I did, the more they kept moving my targets, I would come in a 6 am for a two hour sales meeting to discuss what the focus was for the day, only for them to rollock us for not hitting targets, or increase our targets.
I lasted about 18 months and quit due to burnout. I then had a few other jobs, and started my own telemarketing business. I managed to get 12 clients and was making good money, and then the contracts finished and I couldn't get anymore as no one was spending money.
So I went window cleaning with a friend to earn some cash, did some gardening with my (now ex) father in law until work picked up. I realised I enjoyed working outside and as worked picked up again on the telemarketing I longed to work outside again.
I had a meeting with a customer in Scotland, I rang him up and cancelled the meeting; I cancelled any future work, finished my contracts and closed the business down. The next day I started canvassing for window cleaning, that was back in 2003 and I haven't looked back since.