you should have asked him what he does when it rains?
cover the grass with tarpauline?
a little of thread but went to one of my customers last week and commented on how bad the lawn was as I had seen lrge bags of course sand I asked if they were having slabs, I smiled when they told me they were having Astra Turf, I of course said for a small charge I could brush it when I cleaned the windows... smiles were the reply