The taxes thing was a pain when I worked in stores in Canada. You&#x27;d get about 10 customers a day presenting some kind of ID and claiming to be exempt from either gst or PST, and as a till monkey you&#x27;d have no knowledge or training in whether they were exempt or whether the IDs were legit. Add on people buying 6 cakes to avoid gst, and you might as well just press random tax buttons on the register