In my new build flat building I’ve lived here since November the fire alarm has gone off twice between 8-9.03 each time I’ve grabbed my keys slippers and stood outside until it goes off normally about 10-15 minutes later it stops. Only a handful of residents leave there flats, this evening I saw Someone look out the window and sit back down while the alarm was going off. my neighbours never leave while it’s going off and then later in the evening I hear them leave to go out. Surely you leave incase it’s a real fire?