The koalas sleep 22 hours a days. "It's not because they are lazy, it's because eating eucalyptus doesn't give them to much energy". In the Australian Zoo, the keepers awake them to hug the tourists -Queensland is the only state in Australia that allows this- and so they take advantage to poo when they are awake.
"Koalas of the Australian Zoo. Shitting the tourists since 1970"