It's a beautiful Sunday evening in June. A high-school age kid shows up at your door and tells you about a special his pest control company is offering:
"$69 for a first application, for new customers only. If you like, we can come back every three months or so for a follow-up."
Sounds good, I think. We have noticed some ants in the house. I tell him to come back the next day and get it done.
They show up while I'm at work. They tell my wife she has to sign a contract, "Don't worry, your husband has agreed to all the terms. You just initial here and here, and sign here."
They do the work. It takes them about 15 minutes. They bill the $69 and I pay the bill.
Everything was fine, or so I thought.