Based on the context and the answer, generate a question. 

Context: Page 516 ! Uni readings done for the day too , so should be clear to finish up tonight . Last night I sent a deranged message to R along the lines of " Hahaha sucked in ! Bet he did nt see THAT coming ! "

Answer:

They were tired after a long day of studying and did so without really thinking about what they were doing



What is a likely reason that the speaker sent a delusional message to R ?