Kirk exchanged a glance with McCoy who only shrugged. The bridge of the Enterprise remained in stunned silence as the ship's first officer stood in the turbo lift doorway. Uhura rolled her eyes before stifling a feminine giggle. "Is there something wrong with my appearance?" Spock asked with the lifting of one pointed eyebrow.
Sulu and Chekov snickered before returning their attention back to their stations; they were flying through deep space after all!
"Spock, what are you doing?" Kirk said, finally voicing the question that was on everyone's mind.
"He's finally gone out of his god damned mind," McCoy said.
"I assure you doctor, I am well within my mind." Spock replied.
"Then what's with the…" Kirk asked, gesturing with his hand.
"I believe I can explain sir," Uhura said.
"Oh?"
"We were discussing some of Earth's more unusual customs." She said, "And during our exploration we noticed what day it would be today. I don't know where he found it but I believe this is an attempt at humour."
Kirk frowned for a moment before McCoy let out a laugh. "Well, he sure looks the part." He guwaffed. Spock did not smile.
"This is the custom?" He said.
"Yes Spock." Kirk said, "Enlighten us, where on this ship did you find that rainbow coloured wig?"
"Ensign McGivers had one. She said it would 'do the trick'" he said as he crossed the bridge to his customary spot at the science station. "Happy Fool's Day."
The crew of the bridge erupted into peals of laughter. It did indeed do the trick.