It seems as though every profession has it's own set of customers that should be avoided at all costs. I've found this to be true at every job I've ever had anyway.
However it seems that when it comes to security camera installation all customers should be avoided. This job requires you to act like the customer knows what the fuck they're talking about when in actuality they know as much about cameras as I know about assembling a space shuttle. This seems to be totally lost on them since they insist you're wrong and they're right.
In closing, fuck you customer.