When Olivia is entering Jeanette's house she draws her side arm and the sound of a hammer being cocked is heard and her thumb makes a motion across the rear of the slide as if she is cocking a hammer. Olivia's pistol is a Glock, which is a striker-fired semi-automatic. Striker-fired guns have no external hammer.
While being questioned, Humphrey Becker leaps up from the table to attack his mother and is retained by Stabler who was standing behind him. However, Christopher Meloni (Stabler) mistimed his cue and stepped forward to restrain Becker before he actually jumps up. Meloni steps back and a moment later jumps in at the right moment.
Elliot gives the homeless man a chocolate bar to eat after he starts passing out saying "he needs sugar" as if somehow the reason he was passing out was because he was going into hypoglycemic shock due to injecting too much insulin. However, the homeless man was passing out because he was under the influence of an opiate, heroin most likely. His works kit could clearly be seen on the ground next to him, there was a used syringe, a small bag with a brown powder in it (heroin being brown in color), a spoon for cooking the heroin in and a belt which was used as a tourniquet so that he could find a vein more easily. There was no evidence he was using insulin, it doesn't need to be cooked so he wouldn't have needed a spoon, it doesn't come in powder form so the bag couldn't have contained insulin and self-administered insulin is injected subcutaneously not intravenously, so there would have been no need for a tourniquet. So in short, making him eat something with sugar would not have helped improve his condition one bit.
When speaking about how RDK takes care of his books Olivia comments "he's got a humidifier." Olivia must of meant to say "dehumidifier" as a humidifier adds moisture to the air, which would be bad for books and paper, whereas a dehumidifier removes moisture from the air.