Coworker: “Hey, can I get your cell phone number?”
Me: “Sure” (give them my work cell number)
CW: “Oh, I have that number, but I called you last night several times and you didn't answer.”
Me: “Ya, that phone goes in my backpack on silent when I leave the office.”
CW: “Can I have your personal cell number then?”
Me: “No, sorry, my personal cell stays personal”
CW: “But then how am I supposed to get a hold of you after hours?”
Me: “…Exactly”
CW stares incredulously as I smile and walk away.