we used to have a lot of fun at my mom's expense. we were 3 girls in stair step position ( every 2 yrs). when one of us would call mom we would keep her guessing which one she was talking to. our voices were so alike she had to wait for a clue like a husband's or pet's name, or a specific mention of our job. the challenge was keeping the conversation going the longest without her guessing correctly. i was so good at it, that if the conversation went long enough then it had to be me. lol