Potential racial attack

I've consistently enjoyed shopping at Clicks due to their excellent service. However, during my recent visit to the Northgate Clicks, after purchasing infant food with my kids, the security guard requested my receipt for inspection, which seemed unusual as I've always shopped at Clicks without such checks. While I recognize he may be following branch policy, it became concerning when other customers, seemingly not subjected to the same check, left without scrutiny. This raised suspicions of a potential racial bias, particularly black-on-black.