We're not all that bad, honest...
I'm Ben, my company's called Compass Trailers and we specialise in mobile trailer servicing to the marine industry - particularly with boats left on!!
In fact, I'd say 99% of the boat trailers I service have the boats on. Why would we expect the customer to go to the embuggerance of taking a days' leave, launching the boat, finding a temporary mooring, getting the trailer serviced and then have to do all the above in reverse to get it back home?!
Next time Google 'mobile trailer servicing' - hopefully we'll be somewhere near the top!