Watch out for obsessive-compulsive behaviour. Mirapex is said to induce gambling in people who never even bought a lottery ticket.
I was affected in a very surreal way: I found it difficult to leave the house before the mailman arrived, for instance. Since the mailman usually comes around noon, I wasted my mornings at home, even if I had to run errands.
That was a scary part, but not the worst. It made me very fidgety and nervous to the point that I was afraid to ride in a car when somebody else was driving.