Liam Hornwright did not take his tertiary education very seriously, primarily treating it as an opportunity to party. This did not escape the staff and the words of Dean Harland Elliot "spends the majority of his time in a haze of marijuana." Doing less than the bare minimum and insulting the faculty staff with his proposal quoted above. He was nonetheless retained due to his family connections to Hornwright Industrial and the ire that expelling him would bring meant that his progress at the university was closely monitored. 
He also owned a miniature schnauzer named Riley who he had allegedly trained to open vault doors.
Liam Hornwright is mentioned only in Fallout 76.