Single-latch lock and rodent trap with single-latch lock

A pest-control device comprising:

• a lock comprising:
• a first lock portion having a post, two laterally spaced members each defining a barb extending away from the post, and a longitudinal axis extending through substantially the center of the post;
• and
• a second lock portion defining an opening and having a latch member on a side of the opening, the latch member having opposing lateral protrusions;
• where the second lock portion is configured to engage the first lock portion such that:
• the longitudinal axis of the first lock portion extends through the opening, and the lateral protrusions of the latch member contact the barbs of the first lock portion to resist separation of the first and second lock portions;
• and
• where the second lock portion is configured to receive a key having shaft with a longitudinal axis such that the shaft of the key extends through the opening and the longitudinal axis of the shaft is angled no more than 30 degrees relative to the longitudinal axis of the post;
• a receptacle;
• and
• a door coupled to the receptacle;
• where the first lock portion is coupled to one of the receptacle and the door, and the second lock portion is coupled to the other of the receptacle and the door.