[kube-system]

It's fraud to bill someone T&M for time that wasn't actually spent. You're better off quoting it fixed-fee. :)

[evan_]

Bill hourly with an 80 hour minimum. Then you can give them an invoice for 5 minutes to type the email and bill them for 80 hours.

[nsoqo]

“I had Martin explain to me three times what he got arrested for because it sounds an awful lot like what I do here every day.”

[trevormcneal]

well said, and these companies have way too many lawyers with free time to keep suing you, even if you are right and the judge solves the case in your favour, not always it is required to cover legal expenses and the amount of legal fees burned on it won't worth.

Fixed fee or monthly "support contract", with minimum of 1year.