I really want to just go put something under the wheels but I’ve never talked to these people.
Update edit: thank you for all the replies. I went over and knocked but no answer. It’s definitely not chocked. If I see them come home I’ll go back over. I’m worried as soon as the weight shifts loading it that it will just go down the hill.
If I owned a trailer I’d be so worried about this. There was a local story around here of someone who had their race car on a trailer hooked up to their truck at a hotel. When they woke up the trailer and car were gone. Idk if they ever found it… the race car was not registered.