grinding your genitals against people, clothed or unclothed. and i would also point out that the definition applies whether or not the acts were sexually motivated or, for example, horseplay. do you understand the definition i've given you? >> i do. >> again, if at any time you need to review that, please let me know. dr. ford has stated that somewhere between five or six people were present at the gathering on this date. you, mark judge, leland ingam at the time, patrick p.j. smith, dr. ford and an unnamed boy. do you know mark judge? >> i do. >> how do you know him? >> he was a friend at georgetown prep starting in ninth grade.