More then once yes...
Can't recall it ever ending well, but one of the first times this happened was @
32Red, and i remeber them returning my balance..
Also once got my balance reinstated @ Nordicbet, when they still took Dutch players, but on all other occassions igot zilxch, and never won a biggie yet, at least per accident.\
I've also spun big on purpose though, pretty much with similar results, although i did hit a 3 out of 3 on a 200,- Keno spin once
It is a big pet peeve of mine that most operators have these tiny and i.m.o. irresponsible betting functions in their slots, be it the max bet button next to the spin button, or the fact that if you press a down arrow on the coins size, it doesn't stop at the minimum coin size, but rolls back "up" to the maximum coinsize (which probably happened to you) or even worse, when you are betting a certain coin size and/or level, then press max bet and realize that software will change both the coin size and the coins per line to the max
The way it
should be, i feel, is to have the max bet only set it to the max, whatever that may be, total max or coin value max or coins per line max or whatever, but then DOESN'T automatically spin as well. So, max bet will set it, but you must then spin it manually, or by setting autospin afterwards. A little warning is also good (Are you sure you wish to set the maximum)
Anyway, i still hope to one day press the max per accident without an active bonus, and then hitting the motherload, as a payback for the hundreds i lost over the years
I am pretty careful these days, so it doesn't really happen to me anymore