Either I need to tweak my punch lines, or...
Nurse: Do you have my potassium with neut?
Me: I put it in the fridge.
Nurse: All I saw in there was a potassium bag with sodium bicarb.
Me: ... Potassium with neut.
Nurse: Sodium bicarb is neut?
Me: Yeah. It kind of balances out...neutralizes the potassium's sting.
Nurse: Oh! NEUT! I was thinking: newt, n-e-w-t.
Me: ... as in "eye of"
Nurse: *laughing* Yeah. I guess.
Me: Wow. That's some old pharmacology there. I haven't used eye of newt in years.
Nurse: You really use eye of newt? Thats so cool!
Me: ... ... ... uh, no... I was kind of yanking your chain.
Nurse: Ohhhh. ... Well, ha, ha.
Me: But we do use toe of frog pretty regularly.
Nurse: Really !?
Me: *facepalm* No.