When we lived in Hawaii, our condo had just been built on what the year before had been a cane field. Our second bathroom didn’t get used a lot, it was for company mostly. When Mrs Yup’s cousin was coming to visit, we were cleaning up the spare bedroom and bathroom; turns out a colony of sugar ants had set up residence in the bath faucet. Water got turned on and whoosh, out came a huge ball of ants and their larva. I sometimes wonder what would have happened had we not cleaned it out ahead of time: cousin gets in the shower, turns on the water, and instantly gets covered with ants. Heh.