Just heads up, i used to work for an external company contracted to work in B&Q stores across the country.
Trust me, the staff know what goes on in the toilets and will kick anyone out from the store. They all have cameras monitoring the outside door to see who is going in and out.
During covid, alot of stores closed off the toilets and many still remain closed for that reason, but that's not the real reason they have been kept shut.
Just be careful, you are being watched.
