Agatha All AlongactressAubrey Plazabriefly lived with her Marvel costarPatti LuPone and survived to tell the tale.

And about that time she almost killed her with a dose of Benadryl.

Plaza realized as the shot was being administered that it was Benadryl the strong stuff, too.

Patti LuPone and Aubrey Plaza

Patti LuPone and Aubrey PlazaRodin Eckenroth/Getty Images for Marvel

It was like a horse tranquilizer for me.

After she came down and the nurse had left, Plaza questioned LuPone as to why the scenario happened.

And she went, Its happening because you are on the stage now and you better toughen up.

Patti LuPone

And that is why its happening,' she said, mimicking LuPones signature grand voice.

And I understood everything about Hollywood in that very moment.

Earlier in the video, Plaza also shared that LuPone helped dress her and made her soup.

Sandwiches, out of this turkey.

And I was like, Whatever you want.'