it makes perfect sense. i do not hear from my son when he is using. he goes on runs & when third day rolls around & he has not called i know he is using.my son has always been very protective of me. i was a divorcee for 12 yrs & part of that it was just us two. in his early days of using he would get high, call & say some terrible things to me he would b sorry for later.today i just don't hear from him which it he is high it is better.