Talk:The Fermentation Bifurcation/@comment-4793317-20160429004815

The gang goes to a wine tasting and run into Penny's old boyfriend, Zack. Raj is worried about Claire finding out about him dating other women and is the one who accidentally mentions it. Leonard starts worrying about the military applications of their navigation system after Zack wonders about it. Meanwhile, Bernadette spends the evening with Sheldon when she can't go wine tasting with the group. THey discuss trains, types of toast and play D&D where Bernadette can do all the things that she can't do because she is pregnant which makes a nice evening for her. Recurring characters:  Brian Thomas Smith as Zach,  Alessandra Torresani as Claire