Update on rat situation

ok, recently our rat problem has improved dramatically. Here's the reason: We solved the problem right at the source. the rat got into our room by a gap through our door:

it even chewed a hole in our floor mat to make more room....

So we solved it quite simply::

we blocked the crack with a cardboard... board?

ingenious?? Thank my brilliant roommates who some guys referred to as geeks. haha. No more RATS!!!! XD (inside the room, anyways. heehee)