This joke has, as speculated, been made before.
Filling up the pot with boiling water, pouring from pot into mug with milk in it, taking a sip.....
"Ooooh, nice tea"
One possible treatment is to wear high heels, in order to imitate the excessive sound of footsteps heard whenever a Series 3 dungeoneer walks along a corridor.
Another is to develop multiple personality disorder, so that you have three voices in your head advising you step-by-step.
Purchase and converse with A Wok.
Eat a Pickle.
Draw a giant face on your bedroom wall, and when you hear someone talking in another room, pretend it is the face.
If you happen to own two identical cats, fit them with lasers and get them to stand very still at either side of the front door, a la the Series 3 Level 3 cat puzzle.
Get an airport job at Passport Control, and greet every incoming traveller with "Enter, stranger."
Open a gloomy theme park called GrimWorld.
Find a person with a sense of humour who smirks almost automatically, and tell them in a posh accent to "turn their smirkin' orf forthwith."
Watch The Addams Family, and when Uncle Fester comes on, shout "SHUDDUP, FESTER!" A similar treatment is possible with the character of Feste at a performance of Shakespeare's Twelfth Night.
Join Brother Mace's order of Tavern Monks, and become "sworn to insobriety", i.e. go to university.
Or, visit the Knightmare Discussion Forum.