After an application and subject matter test, I connected for a mock session. The "mentor" was acting as a middle school student needing help with homework. Walked the "student" through the assignment and started tutoring. Then was asked a bunch of tricky questions clarifying what I meant. While there was an agenda, after about 30 min the mentor abruptly ended the session, not even finishing the agenda. While some of the session was conducted on voice, most was on chat, but I could hear the "mentor" sighing and typing as she became increasingly combative in her questioning. Very unprofessional. No feedback, just abruptly left.