The stickers are quite clear.
Even if it turns out to be nothing, the procedure is there for the untrained to "alert" the necessary services - err on the side of caution. It's why they put the rotten eggs smell there in the first place!
Even if it turns out to be nothing, the procedure is there for the untrained to "alert" the necessary services - err on the side of caution. It's why they put the rotten eggs smell there in the first place!