Thou shalt not use the 140 characters limit as an excuse for bad grammar and/or incorrect spelling.

Thou shalt not tweet to be retweeted.

Thou shalt not follow someone, merely because they are following you.

Thou shalt not unfollow someone, merely because they stopped following you.

Thou shalt not think that thou be a leader, merely because thee be having more than 0 followers.

You cannot sensibly expect a starving 'God-fearing' man to honor the 8th commandment.