These days, most Trolis work in Tittitibbs hypermarket on Tibula. In the past you would have most likely found them walking under the trees of Tibula, shaking their trunks and letting the fruit fall into their head cavities. Their brain juices would then dissolve the fruit and they'd be energised for the rest of the day. In the hypermarket however customers use them when shopping. They throw their items into the trolis’ head and march them to the tills. Packaged content seems to survive this process but things such as fresh groceries often seem to check out a little more dissolved than desired.