Just curious is it random how long you stay shapeshifted when you use statuettes? It doesn't seem to be based on running out of stamina, right clicking brings you back to human form, but it also randomly changes you back.

It would be nice to know if there is a specific time limit or if it's based on something else when you use it, as things such as the spider form is useful for spying in enemy territory, but not so much if it randomly changes you back to human form.