About 15 years ago, when I was a fairly 'rough' mustering pilot, I was doing some time in the left seat of an R-22 with a newly endorsed mustering newbie. Things got a bit out of control on the ground and I could see we were going to lose the mob if we didn't get 'stuck- in'. Landing quickly I told the other guy to get out (to improve performance). Not having really studied the POH, (helicopters had little more status than trail-bikes for a lot of us back then) I launched without swapping seats and spent the next 45 minutes or so getting the mob back on track.
I didn't notice that the Robbie was particularly difficult to fly in that configuration. Yeah it probably flew a little more left skid low, but not enough to scare me.
Still, once it was pointed out to me that solo from the LH seat is against the rules, I didn't do it again.