No mention of roundabout or traffic circles in Ontario’s Highway Traffic Act, but the rule that governs are the yield signs around the outside that stipulate that traffic in the roundabout has right of way.
Keep moving: Once you are in the roundabout, do not stop except to avoid a collision; you have the right-of-way over entering traffic. Do not change lanes while in the roundabout. If in the inside lane and you miss your exit, you must continue around until you meet your exit again.
This suggests, in Ontario at least, you could stay in the roundabout forever without breaking the rules.
Edit: If you’re not bothering anyone doing that, then it should be alright, but if your perpetual roundabout traversing is getting in the way of other people trying to use the roundabout, then it could be considered careless driving:
Careless driving
130 (1) Every person is guilty of the offence of driving carelessly who drives a vehicle or street car on a highway without due care and attention or without reasonable consideration for other persons using the highway. 2017, c. 26, Sched. 4, s. 17.
No mention of roundabout or traffic circles in Ontario’s Highway Traffic Act, but the rule that governs are the yield signs around the outside that stipulate that traffic in the roundabout has right of way.
From the Driver’s handbook:
This suggests, in Ontario at least, you could stay in the roundabout forever without breaking the rules.
Edit: If you’re not bothering anyone doing that, then it should be alright, but if your perpetual roundabout traversing is getting in the way of other people trying to use the roundabout, then it could be considered careless driving: