I only heard good things from RC Ignitions. I think it is time to get in touch with a lawyer, and have him (or her) draft a nice disclaimer. Similar to the ones we get with all kind of other equipment we buy, concise, to the point and legal.

Maybe it will keep some customers away (the kind you do not need). As a self employed professional, this kind of things are something I think about all the time. Ah, the next thing is to add a $1,000,000 or 2,000,000 umbrella rider on your insurance to cover you in case any idiot sues you. This insurance is still dirty cheap, and if anybody sues you, the insurance company will defend you (you do not have to get and pay a lawyer yourself), and they cover you to the amount of the policy. Talk to the guy that sold you your homeowner's insurance.

So, next time this happens your answer is a) read the disclaimer on my websit/that I sent you b) sue me

Good luck, Gerry