From last night’s session of Labyrinth Lord with my son and his 5th-level thief:
Me: The dead half-orc has seven gold pieces and two vials filled with liquid.
Son: I’ll take the first vial and give the second vial to the dwarf. Dwarves have a bonus against poison, right?
Son: I take a sip of my vial.
Me: Which vial is yours, again? The first one or the second one?
Son: The first one.
Me: Roll a d20.
Son: [Sighs] 11.
Me: What’s your saving throw vs. poison?
Me: It’s a potion of healing.
He was so relieved that he wasn’t even mad at me for messing with him a bit.