When I get called to clear a blocked toilet, I automatically tell them it will be a minimum of £100.
Reminds me of a chap in Woodside who wanted me to relocate his toilet. I was busy at the time so asked him to look elsewhere. 6 Months later, I got a call, said new toilet was blocked. I told him I'd rather not be involved. ''Call the person who fitted it''.
He pleaded and pleaded. I told him we need to hire a jet thingy to which he said he will happily hire one. I then informed him that I will not be doing the jetting but will happily instruct and supervise him on how to do it.
Throughout the process, even though he was the one jetting the drains, I was retching uncontrollably. By the time I got home, my sides were hurting badly from all that retching. Got paid £120 for the supervision though.