How to Flush a PICC Line (and drop your camera in a sink of water)

The process of giving yourself a "ball" of intravenous antibiotics involves then flushing the lines that the PICC (peripherally inserted central catheters) has in place somewhere around the... oh, i dunno, the superior vena cava:  

So here is my essentially one-handed, one-armed demonstration of the process -- a great film event until the video camera fell backward into a sink full of water.  It seems fine, thank goodness.  Otherwise?  There'd be no more viral cat videos, feline bits of amusement that I know you all live for....