As a follow-up -
There must be at least half a dozen resident guest geckos about the house.
Initially they caught you by surprise and the wife would freeze, but they are quite charming in a reptilian way and serve a useful purpose; like spiders, they keep the insect population down a bit.
'Er ladyship detests spiders, but has grown to accept the geckos.
We affectionately refer to each and every one as Gary (alliteration) and might make a passing remark on spotting one nipping up the wall or poking its head out.
They vary in size, which I guess relates to age, and are up to about six inches nose to tail.
The rascal in the photo below is about four inches.
They do not tend to dart as quickly as the wall lizards, which do not come into the house, and are slimmer and snake-like with legs.
Similarly the species of snakes we get here have not come indoors, with the exception of when our (late) female moggie would present us with a trophy which could be anything fauna.
Back to geckos; they vary in colour, from a pale beige to a dark grey and are of a sort of mottled marking, and can be plump or slim independent of length; bit like us.
Although we have fly screens inbuilt in all windows, we do not deploy them unless an inundation is to be prevented; so open doors and window do let in a few unwanted buzzers.
I attack with a swat, one of which is an electronic tennis racket type zapper.
Anything grilled is shaken off behind a radiator where our geckos are often seen.
So they are treated to a freshly toasted snack occasionally.
They are just observed as part and parcel of out world as they traverse the walls or exposed beams, and now do not alarm us except on the rare occasion they scamper across the floor to reach another wall.
Our cleaner is not too impressed as they do deposit their faeces whenever and wherever they need, which is like miniature mouse droppings.
