Thinking about it, there are two or three stretches where this is really common.
One is Milton road, with an off-road shared use path along much of it, or the 'pedestrian slalom' as I like to call it. I can't be doing with giving way to each side road and having to stop sharply for each drive where someone pulls out.
Another is Gilbert road, which has worse than useless cycle lanes that have cars parked in them, so you can either be constantly pulling out into the traffic or just stay IN the traffic, which is safer.
And the third is Chesterton Lane, where a new (couple of years old) traffic island has cycle paths down the outside of the road on either side, thus meaning that the point at which the road narrows and you really should take primary position if you hadn't already, you're being encouraged to be in the gutter, and motorists are encouraged to think that at this location you SHOULD do this; often a car will accelerate behind me assuming that I must be about to move over for the cycle lane.
So, yes, on reflection, at least once a month here, or closer to once a fortnight.