1000 ways to get kicked out a Pokémon Center

[Leviathan]

533: Deliver an RKO to everyone who ventures into the centre.

 

[Nidorina of Time Lord]

526. Use Confuse Ray on the Nurse and accuse her of drinking alcohol during work time.

I would totally write a fan fiction about that. I am a very sick and twisted person.

535: Try to have your fire type Pokémon randomly set things on fire!

 

[Return]

525. Charge money for healing a Pokemon.

 

[Ace Trainer 188]

537. Have a bunch of mons set other peoples' hair on fire.

 

[Meadow]

538. Share a thousand different reasons why you're obsessed with Pokémon.

 

[Squirrel]

540 - Adopt a pet Raticate and take it for a swim in Lake Valor only to have it unfortunately drown because rats can't swim and so take it to the PokéCenter to be revived and Nurse Joy be all like "oh hellllll nawwww" so you gotta get all up in her grill like "you wot mate???" causing a huge fight to brake out involving the two biggest crime syndicates in the region, resolved only by you agreeing to leave the PokéCenter with your dripping wet Raticate corpse in your arms as per Nurse Joy's request. :D

 

[Nidorina of Time Lord]

541: Tease in all new trainers who bring in a weak Pokémon to be healed, like this
Trainer: Nurse Joy, can you please heal my Magikarp?
You: Magikarp? Ha! Magikarp is for losers!

 

[Nurse Joy]

I can confirm all of these actions would get you kicked out of the Pokemon Center!

But if you want to be technical:
542: Have your Pokemon use Hi-Jump Kick on yourself, tossing you into the air and right out the door without any further action.

 

[Return]

544 Fight with People in the Pokemon Center(Including Nuse Joy)

 

[Lycanthropy]

546. Make a Trick Room of the Pokémon Center.

 

[Squirrel]

547. Try to balance 20 Geodude on your head simultaneously.

 

[TravelerTrainer15]

548: Bring in a big screen and play a movie with LOTS of Rule 34. Go to next center. Repeat until you are no longer allowed to go into Pokemon centers.

 

[Adam Levine]

549. Ask too much paradoxial questions.

 

[DyingWillFlareon]

550. When she goes to take your Pokeballs, don't let go of the ball, and stare her dead in the eyes quietly.

 

[Meadow]

551.

Pay Nurse Joy in cash after she heals your Pokémon... wait, WHAT?!

 

[Nidorina of Time Lord]

552. Just walk around in circlea and occasionally knock things over. Ignore anything Nurse Joy tells you.

 

[Meadow]

553.

If a Pokémon Center is closed, use your Klefki to bust in, and then demand Nurse Joy to heal it once she arrives.

 

[Johto Cheren]

554: Attempt to reach the underground floor before receiving the first badge, using a hacked Pokémon to knock out the woman blocking the way.

 

[Meadow]

555. Give yourself a haircut without using HM Cut, and then when Officer Jenny arrives to interrogate you, make sure to say: "Oh, officer! I can explain!"

;D

 

[Johto Cheren]

556: Asking Nurse Joy why did the GTS disappear from the Pokémon Center, and she tells it is in the PlayNav, and break her PokéNav Plus.