I used to have a venus flytrap when i was a kid. It didn't get many flies in my house so i'd squeeze a few drops of blood from a raw steak every couple of days to feed it.
They're fun to watch in action. The Nepenthes is the largest carnivorous plant although not as intimidating as the first(which i don't know the name of).
<i>Dionaea muscipula</i>. Each "trap" is actually only one leaf, believe it or not - it's evolved into those two halves. There's a little hair trigger thing that provokes a reflex action when touched, hence the "trap".
I keep one just above my kitchen sink...helps curb the fruit flies coming from the composter under the sink...very easy to care for if you keep it in a sunny location.
When i was in highschool i had a pot plant growing in my room. It was all of about six inches tall. My dad came in my room once and asked me if it was pot., I told him it was radishes.
You should have told him it was hemp you were growing to make a rope... and hand him a dollar bill with the famous "I grew hemp" voice bubble pointing toward Washington's face stamped on it.