Not to be trusted
Sturgis has been tasked with keeping an eye on Mundungus.
Mundungus eyed him warily and asked, "What do you want, Podmore?"
Sturgis said, "You can call me Sturgis, Mundungus."
Mundungus scowled. "You have never even talked to me before. So, why start now?"
Sturgis told him, "The Order has, uh told me to 'keep an eye on you' and I wanted to know why."
Mundungus sighed. "I'm not surprised, they think that I'm not to be trusted."
Sturgis frowned. "Why would they think that?"
Mundungus smirked. "I'm a bit of a thief, I like to steal nice things."
Sturgis stated, "That's no reason to have you watched."
Mundungus gasped. "You have been watching me?"
Sturgis nodded and reassured him, "I'm not going to any more though, you seem like a decent guy."
Mundungus admitted, "You're not so bad yourself."