Czech language fun

So everyday in czech class for the first 20 minutes or so we just ask the teacher how to say random things and phrase that we think would be good to know. For example, "Sorry I'm late", "What a shame", "I am sick" and "I am sleepy". Today just as the teacher was about to move on to the real leason, Kelsey raises her hand to ask one more question. Kelsey "umm...How would you say alien or extraterestial?" This is when our teacher gives a strange look and then just writes the word on the board. Now why that word is going to come in handy in Kelsey's everyday life here in the czech republic is beyond me but it was very funny. There happened to be two words for this in czech one being "ufono". This is when one student made the comment about ET. So it was something about what ET says "ET ufono" instead of ET phone home, maybe he was speaking czech and not some alien language. Anywho...thats the fun i am having in my czech language class.