I once had a phone call (can't remember what it was about) to which I replied I live in a Park Home (Mobile Home), response from caller "we don't deal with Gypsies
" & he slammed the phone down. I was furious at first & then so the funny side, what an assumption to make, never been called a Gypsy in my life & I'm sure true Romany's would be equally offended.
I don't respond to cold callers, fortunately most calls come through on my mobile so I check with the "who called me" site & block if they've been reported as scams, nuisance etc.
I also check for any schemes on-line to ensure they are genuine. Although I own my Home I have had exterior & underfloor insulation done through Local Council & a new Gas Boiler. My windows require replacement but I shall approach the Council to see if there are Grants available.