Direct comparisons to the lag on this site can be drawn regarding window cleaners that are regularly behind with their work.
You're in it for the money just the same as the site owners.
You don't spend out unless you have to.
Customers expect freebies.
You take on more than you need.
There are high and low customer demand periods.
Its always f***ing raining.
You don't look at it from any other angle apart from your own.
The only difference is you expect payment from your customers.