Are my testicles black?

When my friend (the one who's still visiting) was travelling to Asia last time, he developed a blood cloth in his leg on the way back that became quite serious and he had to spend a couple of weeks in hospital after. When his brother was visiting him in the hospital he was very surprised to hear his brother asking "are my testicles black?". He said "what did you say?" several times and my friend kept on repeating the question. Finally the brother reluctantly lifted the blanket and looked, and which time my friend shouted "NO, you idiot. I said are my test results back?". Very funny, especially in a Northern Irish accent...