Guard Dog

You are called ’Moody’, and not by chance.
You don’t take crap from anyone.
If you don’t let the sucker in there is no point in arguing,
he can take a hike or leave with a hole in his pants.
Your old man gets a lot of visitors recently,
which means lots of work, lots of food.
Some pretty strange characters try to sneak in as well,
but they won't get by on your watch.