I've been at busy stations and quiet ones, makes no difference, when called out we went, day or night, whether we liked it or not, in any case quiet stations welcomed some action but not time wasters. It doesnt wastes time just for one station as others have to be mobilised to provide cover, and sometimes while attending a spurious incident a genuine caller has to wait longer for help which can be life threatening.
Yes I've seen some decisions made by senior ranks which in retrospect were a bit iffy, fortunately no comebacks but that's the nature of the job.
ETA: It's really exciting when you sit on the toilet for a much needed dump only for the bells to go down mid drop and after a perfunctory wipe to then find it was a waste of time. Return to station jump in the shower for a quick splash and then the bells go down again, great fun.