Those interactions go down for many reasons. The CMs get worn out, from having to be on stage all the time; the guests prove to be....difficult, let's say; word comes down from corporate to 'calm down the antics' (as we have seen at WDW, at several restaurants)...
SWGE has only been open to the public for what...a week now? DD had 3 shows, the day before yesterday, where people talked through her spiel, loudly...not just excited whispers, but flat out talking, and one guy loudly said "hurry up, we don't care, we just want to build the d*** thing". Killed her mood, and while she did bounce back to finish her shift, she cried on the way home. She has been yelled at by adults because the spots are all filled; told she is not very good at her job (by the 2nd guy I'll talk about in the next paragraph); had someone try to hand off their baby, without a word, then get mad because she wouldn't (why not hand the baby to the adult that came in with the builder? Oh, because then that person couldn't record the builder for their instagram/snapchat/twitter glory). She had some lady yell at her during the show because they were all done and wanted to finish and move on, but there were a couple of other people in the show who were taking pictures/video of every single thing in the show (including every piece in the kits), and they were delaying things.
One of her leads is already talking about transferring, and this is a person who has been with the company for many years and was a lead already when they transferred in, because they got into trouble with their bosses because of guest complaints. One person built their lightsaber, came back the next day, and threw a hissy fit and wanted a refund because it was 'so expensive', 'not worth the cost' and 'didn't work like a real lightsaber'. The person wouldn't stop, even when told they had to go to a specific person to deal with the situation (not in SWGE, but at GS), that the lead finally gave in and gave them the refund. Some guy let loose on DD and then this lead, because there were no more spots...they were completely full. He ended up at GS, and the lead got a call and had to add an entire show for this guy, causing the CMs to have to stay late, to accommodate him. When the guy got back, they had more people there (because, if you're going to have to do another show, might as well sell all 14 spots) and the guy called and complained about that!
People seem to forget, not just at DL or WDW, but in all sorts of places, like Walmart or McDonald's, that the people working there are...people. And they have zero control over the price you pay, the size of the item you get, the spiel they have to do...they get treated like crap and they shouldn't.
wow, that turned into a rant. Sorry!
but yes, please, add your own backstory. Most of the CMs will really get into RP with you! If you do the lightsaber build, and are into Porgs (or dislike them!), and you get a CM A***, talk to her about her Porg sanctuary.