Certainly, but the most important part of any trigger event is the new parahuman's own mental state during the trigger. In Taylor's case, the locker being a potential breaker/shaker trigger would seem to require her to view it as a completely separate event, emotionally and rationally, than everything else she's been through.
Instead, she very viscerally connects it to her bullies, and to the bullying she's been through, and views it as a culmination of their hatred and disdain for her, and indeed the lack of care the ENTIRE school has for her - nobody standing up for her, or doing anything to help her out, not even alerting her to the mess in her locker or any staff member trying to clean it out, despite the fact that we're told it had been left in there for some time?
To Taylor, surely it stank so badly that SOMEONE must have noticed, but nobody cared enough to ask why her locker smelled like that. And then once she's in it, not a single person cared to let her out for some time. I don't recall if we're ever told how long she was in there, but it was certainly long enough for at least a caring teacher to be informed by some concerned, uninvolved bystander and come by to let her out? But no. She's not worth even that much concern. The mess in the locker is almost secondary to all of that.