My DM owns a house that she rents out to a vile man who has stopped paying his rent. (He lives there on his own). DM is a bit of a sucker for a sob story and has allowed this man to get into several thousand pounds worth of arrears before taking any action to get possession of the property. She's now started proceeding after a big nudge from me but the process takes months and she probably won't have possession of the property until about September.
I've suggetsed that she should do something (not masked men with machettes or anything like that) but maybe make him 'uncomfortable' in some way. Any ideas that aren't illegal?