We have all had those mornings where you just want to crawl back into bed and are grumpy. 
A new survey by the Zombie Underground game app reveals that 50% of people cannot bear to talk to anyone until at least 8 a.m. Are you one of these people? Do you know someone who is?  Other findings:

- The average person wakes up at 6:49 a.m.

- 30% of people dodge conversation with their work colleagues first thing in the morning

- 20% of grumpy adults ignore their children in the morning