not a lot of grip then.
we quite like competitive blind-folded landrover driving around an obstacle course. a game for pairs. one gives directions/instructions but is not allowed to touch any controls, the other is blind-folded and tries to get round an obstacle course (following his/her partner's instructions) as quickly as possible. roles are switched over later. we do this on private land so drinking is not only allowed, it is compulsory. prizes for best pair,best man/woman whatever. great fun.
you could set up a course on your lawn. give the moles a fright.