Teddy stared at the cabinets, waiting to see if one would do something-- creak open or explode or something. It was true, the aliens weren't likely about to hand out their one weakness to their prisoners. Unless they wanted them to think it wasn't a weakness. He'd seen that in a show once; the monsters had pretended that their weakness made them super powered so the people wouldn't use it against them. It was all very tricky.
Hurriedly, he ran into his room and grabbed his wand. Running back into the kitchen, he held it at the ready, aimed at the cabinets. "I don't know. You're the Auror, here. Open one and find out. I've got your back!" he said resolutely. Admittedly, Teddy was twelve and didn't know that many defensive spells, especially not many that might work against an alien trap.