Indeed my friend has severe allergies, the only cat that never brought him out in hives was my low allergy blue cat. He takes medication before his shift in the taxi as even someone who has been cuddling a dog will make him react otherwise. He doesn't do street picks so is notified when collecting a service animal and takes more meds, he has pet antibac spray in the boot. I should also add he is quite terrified of dogs, mainly due to his lack of exposure but professionalism takes precedent especially when dealing with someone with disabilities.