Having your patient spray you with his pee on a Friday morning.
Actually it wasn't that bad. Poor Mr. A had to potty during his visit with me. He was a disabled man on a motorized scooter, and usually needed help to go. Because I was the only man in the clinic, he sheepishly asked if I could help him, instead of getting the nurse.
I agreed, before he cautioned me that he has a tendency to spray (Uh oh...).
Well, he did. All over my hands as I held the urinal (he couldn't get up close enough to the toilet). He pretty embarassed by it, though we both had a good laugh when I reassured him that urine is sterile.