as a expert trike limit tester

i can tell you, at speed you have got to be really be extreme to get one on its side even a narrow track trike, you naturally lean in to bends the faster you go, on some of my 20+mph 90 degree turns i do out rig just have my head and shoulder hanging of the inside edge of the seat.
if you do start to lift a wheel it is very controllable and natural to lessen the degree of the turn and the wheel just drops back down, i quite often get a light wheel 1 or 2 mm off the ground but i am doing daft speeds in to 90 degree turns.
coming down from stump cross cavern in full camping touring kit at over 40mph i have had to do a evasive swerve around a car reversing on to the road, first the left wheel was up then the right one, no big deal every thing soon settled down and did not feel out of control.
it tends to be slow speed manoeuvring with cambers and daft sharp steering in puts that end up with you laying on your side laughing like a loony

they tend to be alcohol assisted.
i have flipped a trike over backwards; after pirouetting several times on water/ice and diesel down hill around 30mph, i hit a 9" curb rear wheel first, the wheel did not survive the impact but as in all my escapades sitting in a tadpole trike that hits every thing before i do, has saved me and i am made of glass apparently.
the average rider on any of the tadpoles, baring the really tall ones has to work hard to get one to lift a wheel never mind roll one.
the narrow tilting deleter trikes are for racing on very tight twisty tracks, you can really give them the beans all the way through the bends, other bikes even low racers have a hard time keeping with them. hear is the but for real life road use they are at best pointless at worst hard work.
rigid deltas with a higher centre of gravity on the other hand have to be ridden with a bit of respect, in a straight line or open sweeping bends they are faster than a tadpole but get in to the sharp tight turns and you can be off in a instant, to help with stability you will see the back wheels cantered in like on sports wheel chairs.
trikes are the ultimate touring bike long days in a comfortable chair totally relaxed looking around you.