80 half-hour/180 full hour

[lovethegirls]

Can someone explai this '80 half-hour/180 full hour' thing to me.

When I was in school we were thought an hour was double a half hour, which would, if I understand mathematics correctly, mean an hour with an escort who charges 80 per half hour would be 160.

For some reason on ei.com the principles of mathematics don't apply.

Could I just go into an escort, pay 80 for a half hour, leave, then knock on the door again and go back in and pay another 80? Has anyone tried that?

........................