Proof: Not hearing properly makes you nervous.

Me: Taro ice. (Yam blended ice)
Shopkeeper: Run out of taro.
Me: Sorry? (Didn't hear clearly, getting nervous)
Shopkeeper: Run out of taro.
Me: Taro. (Too nervous to hear properly. Just gave a quick answer.)
Shopkeeper: (Word by word) Run-out-of-taro.
Me: Oh...ok.

Sigh.