steal the groundskeeper's keys is the third listed mission in the To-do list in Untitled Goose Game, the mission involves the Untitled Goose stealing The Groundskeeper's Keys.
How to complete[]
If the Untitled Goose walks up to The Groundskeeper, it's possible for the Untitled Goose to just grab the keys and then run away.
Missions
get into the garden · get the groundskeeper wet · steal the groundskeeper's keys · make the groundskeeper wear his sun hat · rake in the lake · have a picnic · make the groundskeeper hammer his thumb
The High Street
break the broom · trap the boy in the phone booth · make the boy wear the wrong glasses · make someone buy back their own stuff · get on t.v. · go shopping · trap the shopkeeper in the garage