most of the time what i do is have my sister call my cell if my parents are about to come down stairs and then from my friends house phones have my friend calll and ask for me wait for my parents to yell for me and then pick up the other house phone and answer like im home then my parents get all pissy and yell at me but they think im home i also will occasionally go old school and make a body decoy out of pillows my dad had a 30 min convo with one of my pillow bodies