Seems this year we have had a number of customers cut their own lawns just prior to our arrival without contacting us. Therefore we dont find out until we actually get their. Ive never made an issue of it, since it rarely happened, but this year, Ive probably had 5 or 6 occurances by 3 different customers. I want to include something to the effect in our contract, so that if we show up to cut the lawn and its been cut by owner we still get paid for our time of coming out. What do call this type of fee and whats a fair amount? I was thinking a flat $20, but Im also considering a % of their cut price.