I've seen @Claudyaaa XXX a couple of times, she's nice and responsive - but like most EE's you might get a scolding if you piss them off
She tends to disappear and reappear, as she comes and goes back to Hungary where she's based full time!
The waiting I concur she's done it to me a few times, it might be because the last punter may have overstayed by 5 - 10 mins etc IMO she's not one to kick you out.
Regards using her toilet to do a number two, I've only ever used an SP's toilet to do a number 1 - problem with number two is the smell and some folks will frown at you using their toilet for anything besides number 1.
Just as an advise, I normally look out for a pub or coffee shop and use their toilet then head for a punt if required - to avoid what just happened to yourself.
In addition it may seem as though you didn't take a shower afterwards which some SP's will also find annoying.
In all, better luck next time, but I wouldn't give an SP a neg for using her facilities for a number 2 - as I can relate why she was upset!