Today is not the best of day for me. I just can't do my SPA for Bio and Chem well....i'm really really very worried now...what can i do? Plus, for Bio SPA today, when returning the apparatus, i totally forgot and didn't see the glass rod in the basket....and when i overturn the basket the glass rod just smashed onto the ground.....just why am i so careless and clumsy?? =((((