Blur Case

Today whole day raining and is a gud weather for sleeping..we have our chemistry experiment today..is similar to the one that we did in form 5 thermochemistry..so we have to mix the alkali and acid together and measure the temperature..we have to get 5 type of solution in total..so after we measure a 10ml of HCl in the polystrene cup..we left the cup on our table and to make sure no heat loss to the surrounding..i just simply get one paper to put on top of the cup..after that all of us busy to get other solution and when i return back to our table..realize the cup with 10ml of HCl is accidently poured due to its light weight..it makes the table full with acid and this is not the worst part..the paper that i used to close the cup is wet too..and..the paper was actually one of my group member's report..omg..i make people's report get wet..luckily he din get angry..so i ask him to quickly finish up his report and let other of us to conduct the experiment...he say sorry for cant help us to conduct the experiment...haiyo..after people say like that..i feel more sorry because due to my mistake..i should make sure the paper used to close up the cup is a plain paper but not other people's report...if the report is mine then still ok la but now i make people to susah payah redo the whole thing...wat a blur case that i did after a week of holiday and luckily he manage to redo his report on time...i think i must pay fully attention during the experiment next time..to make sure no such thing will happen again...