The first place we lived in on our first posting in Singapore was a maisonette and located near to one of the last parcels of primary jungle (now all under concrete)
. One day I was in the bedroom upstairs when our Filipino maid screamed for me.
There was a cobra slithering into the kitchen
We went running down to the booth where the security guards spent most of the day dozing and they chased it out with a broom. They also put down a line of sulphur powder. Apparently snakes avoid sulphur.
I was also once walking across some grass, oblivious to the fact that there was a big fat 15ft long python a couple of feet away and I ran like the wind when I spotted it...
One of my friends lived in a gorgeous 'black and white' colonial house; they were originally built for British Army officers and set in spacious gardens (rare in land-scarce Singapore). She used to teach aerobics. One day her husband was complaining about the foul smell in the bedroom. Nina assumed it was just some smelly kit in her gym bag, but even after taking the clothes out to the laundry area the smell didn't dissipate. By the next day the smell was unbearable...and the husband reckoned it was coming from the vicinity of the air-con unit. They called in the air-con service guy.....he opened up the cover and found a nest of snakes (some were being 'cooked' and there were many eggs there starting to hatch).
We've known of a few expats living in the B&W's who've lost their cats to snakes...