The nurse gets various bits of bacteria laden material on her gloves as she's cleaning the infected wounds.
As she's picking up dressings etc off the once sterile tray, she's inadvertently depositing infected material onto the tray, and say the top swab left on the tray.

My nurse then picks up that swab, and rubs it into my wound, including the open fracture.
( Ring Of Fire A petty, drooling belming butthurt retard., Thu 16 May 2013, 23:12, 1 reply)

Of course proper aseptic technique involves keeping the sterile trolley sterile. The only way she's going to pick up scruddy gauzes is if she's rootling around in the rubbish bags or the bin.

( Amorous Badger NAKED BEA ARTHUR PHOTOS 4U, Fri 17 May 2013, 0:34, closed)