After Toy successfully portrait the role of drug-addicted Leo who had been abused in Philippines by a chaplain and so that's the reason he started to take drugs. Sheldon wanted Toby to act as generic predisposition towards addiction as well. And Toby and Sheldon had an argument again because Toby thought generic predisposition never be approven but Sheldon insisted that it was.
Then Leonard wanted to take Penny away from this fight between Sheldon and Toby, and funny thing happened, Penny invited Leonard to her place so he can watch the video of her singing.Leonard showed a funny face in the scenario because after a lot of effort he and Sheldon have done, he still couldn't avoid listening to Penny sing.
snort: people or animal breathe air heavily and noisily.
pain: the discomfort you have for example when you are in hurt or injured.
detox: the treatment to remove harmful or drug addiction from your body.
companion: people who you spend time with or travel with, rather than being alone.
