It seems like Pinkie has the day off, but none of her friends do so she's bored. Instead of hanging out with her other friends, she decided to make her friend out of a bubble and names it, "Bubble Buddy". They have a fun day together, including the several times Pinkie takes "Bubble Buddy" to the bathroom. This time around, she lets him do it on "His own" and as a result, everyone waits two hours for the bathroom. Pinkie is the one unaware of the desperate ponies behind her. It was Lyra who found out she was waiting for "Nothing". And the rest is history.