Tired old me

My energy level today is at its lowest since I have been here. I guess talking non-stop for 8 hours a day does take its toll. And having students whose energy level is not at its optimum doesn't help. I get easily affected by people around me - that's me the cancerian. One of my students is home, sick. Another is 7 month pregnant. Another is a hyperactive child of 24 who gets bored after lunch. Another is a stoic ex-IT person turn HR. Oh boy. Talking to the corny one did not help today. Usually I draw energy from him. I perk up everytime I speak to him, unless of course when things don't go quite right. Not today. I am just tired, and I feel old. It's only 8.15 pm and I really can't keep my eyes open. Don't even feel like calling R who just got back late last night. Hope I can last through tomorrow. I need the weekend!