He doesn't look like a window cleaner to me, he looks like a regular guy whose cleaning his own windows.
I saw similar over the weekend. A neighbor (one I don't like and who tried to get me to clean his rear top windows only (the ones above the coservatory; and the conservatory roof (another window cleaner (Tomo (a member here) also blew him out (they're not nice people))))), stuck up a set of ladders with some sort of metal attachment sticking out of the top rung.
He then placed a thin plank of wood over this attachment and rested it on the conservatory roof and climbed out of his bathroom window; standing on this plank; to clean both windows.
He never managed the conservatory roof, and I did watch with some amusement!!!!
I nearly poisoned their Yorkshire Terrier last night, who 'yipped' for nearly an hour before I went and complained to them about the noise; dressed in my dressing gown and rigger boots!!!
Their excuse, 'my dog won't come in when called!'
I wish he fell!