A GOOD IDEA
Is it a good idea to borrow your boss's office for a couple of days whilst she's on holiday?
Yes, you'll probably get lots done in the relative peace and quiet when compared with the open plan maelstrom of every other day.
Is it a good idea to borrow your boss's office for a couple of days whilst she's on holiday, bring chips in each day for your lunch and then leave it smelling like Harry Ramsden's?
Er... no.