One time, I spammed someone I was roleplaying with with the same message around five times in a row.

This is probably unnecessary to add, but it basically went something like this:

Me: Alfred was sleeping.

Them: Arabella dressed, then went downstairs. She began to bake a cake with a smile.

Me: Alfred was sleeping.

Them: A loud screaming could suddenly be heard from the Italian household. Angrily, Arabella threw the cake at Romano's face, and ran out of the house.

Me: Alfred was sleeping.

Them: Arabella begin to cry a bit, then decided to pay Alfred a visit. She prepared her things and went out.

Me: Alfred was sleeping.

Them: Eventually, she arrived at his house. She took a deep breath, and thought about whether or not she should knock.

Me: Alfred was sleeping.

Them: Arabella then ringed the doorbell.

Me: At the sound of the doorbell, Alfred stirred from his sleep. "Huh? Who the heck is out here so early?" he mumbled. He looked at his alarm clock, which said "3:42 am." "God, too early," Alfred grunted, then he went back to sleep.

(Note that this is not how this part of the conversation exactly went. Only the "alfred was sleeping" messages are 98-100% accurate. Heck, I'm not even completely sure whether this took place during Arabella's seen-above birthday or sometime before or after that).