We have a "gardener" like that. He's quite a cob fellow if you know what I mean! He likes a coffee every hour to keep him going, loves to tidy up, have bonfires (though we have to watch what he put on them in case we wanted them), digs up unwanted shrubs, helps my OH with non-gardening things like moving heavy stuff etc, is very willing to do whatever he can in the time he's got which is usually 5 hours, and all for £10 per hour. Sometimes we put the world to rights and all in all we get on very well. Couldn't do without him actually!