It's stuff like this that makes me love my job even more! Hahaha! Ok, I know you are dying to know where in the world a question like that came from, so I will tell you.
For my current lesson plan, I have my students get into 7 or 8 groups of about 5 to 6 people in each group. They have to come up with 4 YES or NO questions for either me or the JTE. I write down whether they got a YES or a NO as an answer and later reveal the point value for each answer. It's easy enough for them...and it gets them talking in English, so I would say success. For the last class that I did this with, there were two teams tied. Instead of making them play jan-ken (rock, paper, scissors) or just assigning points to YES or NO question, I decided to try something different. I told the two teams that they had 1 minute to come up with the most interesting question they could think of to ask the JTE. About 45 seconds into their planning time, it suddenly hit me that this could get inappropriate...but I went with it anyway. Well, I was kinda right, but it was hilarious nonetheless and the JTE was good humored about it. The first group, electronic dictionary in hand, had to stop laughing before they could ask, "Do you play poo poo every morning?!" The JTE and I looked at each other with puzzled looks. Play is basically the English default verb...as in "to do" -- so what they really meant to ask the JTE was, "Do you poo poo every morning?" HAHAHAHA! I was laughing and told him that he didn't have to answer that question. He replied with, "Oh good." lol.
The next group also had an interesting question, and the JTE chose their sentence over the poo poo one...perhaps because it was slightly more decent. The other group asked, "Which do you like better -- your mother, or Mary?" uhh.... I looked up and said, "it better be your mother!" He comments with, "do you mean wife instead of mother?" Again...it better be your mother -- or wife -- whichever they meant. [Note to the wise: this wasn't the young JTE ;) ]
As frustrating as teaching can be sometimes, it definitely has its perks. And it's not just for the grammar mistakes -- it's because I am helping them express themselves in a different language the way they want to express themselves. It's a good feeling =)