[½»Á÷] To buy or not to buy, it's a ?

              

well, after my dinner just now
walking on the way, I saw the lottery store
and suddenly had the impulse to buy lottery
c's I really have a good mood today
I thought maybe I would be so lucky to win the lottery
Just imaging the scene when I get my wish...

Then I decided to buy one
while when I handed over the money
I was reminded of the words said by my math teacher in high school
at that time we were just learning the knowledge of Probability and Statistics
and after teaching the theoretical knowledge
he said to us, "So never buy the lottery, c's it's a small probability event to win the lottery,
and the one who has learned the Probability will never be fooled to buy it, just like me".
Then I just wondered and hesitated....
Considering I got nothing for the last lottery and the words of my teacher
I decisively abandoned the idea to buy it
then I went to the shop and bought me some snack food

So, do you guys ever buy the lottery, and which kind of lottery do you like to buy?