Aggressive owner at Melkbos Hardware

The disgusting owner of the hardware store asked me to leave and never set foot in his shop again because I opened a plastic bag containing stainless steel nuts to see if would fit the bolts at the till. The nuts were too big so I took the correct size after opening that as well. All staff left the store and left me alone. One lady stated that she was leaving as she does not get paid overtime. The lady at the till said I will have to pay for the incorrect nuts as I opened the small plastic bag. I refused then the arrogant owner came down and said yes I would have to pay. I refused and he chucked me out and threatened to call armed response. I am 70 years of age and felt threatened by the owner's outburst. He took all his bolts and nuts back and told me to get out of his store and never return again. That is completely against the consumer act, but his aggressive attitude is well known in this Town.