Bella has recently started w/this biting kick and all it took was a couple loud "OWWWWS!" from me and she's calmed down. I usually hand her a toy instead but sometimes it's kinda fun to play fight w/her so when she gets too rough, I "OW!" and she eases up and stops biting so hard. Seems to work for me.
So for the more experienced pup owners, am I, in a way, encouraging biting???