How to say? pH=-log[H+] and when you have HCl of 2.0M, you will get pH in negative value. Hmm...isn't that pH is scaled from 1 to 14. This was out of scale. It took me days to figure out the answer, that was after I seek answer from Lin Hui and Google.
Second thing, I accidentally, unconciously wrote my friend's name when signing the lecture attendance. How idiot! =S
Next thing, I realised I lost all my integration skill that I got all wrong in my quiz! Absolutely stupid. The fat fat lecturer said it was a silly mistake. Then I asked my friend,"am I stupid?" and she said,"Yes, you are!" =(
Finally, mom bought me a pair of sandals and she said they can last for years. I proved her wrong when I brushed my foot against the road while looking for parking this morning. And I ended up walking like a penguin whole day.
Enough of those stupidness I got myself into. I think I need to figure some ways to stop it. One way is to stop learning as some people say,'the more you learn, more stupid you get'. The other way is to keep learning because some other people say,'experience is the best teacher'. What? Too stupid to decide on that...