I recently did a HPT at work. Snuck it in under my skirt & then had to wait the 3 minutes or whatever - it seemed like an eternity. I was so worried that someone would come in & wonder why it was so quiet in there (we have 4 loos). No one did & it was a waste of time anyway cos it was a BFN. I then had to sneak it out under my skirt into the basin area & hide it really well in the bin... didn't want any rumours starting.