I love seeing monkeys in many situations but I have never seen them licking the surface. They are very intelligent animals. I think they sometimes become wild and devastated. They live in the wild. I think authorities must intervene before they enter houses.
Thank you dear @joanstewart for your photos and information are really nice and helpful
We live in their original habitat so need to be aware of not tipping the natural scales of life, living together means locking food up properly @walid.larbi