By Julia Burke, Beer Editor A porter brewed with 100% brettanomyces, this is a collaboration beer brewed at Ithaca Beer Company with brewer Bobby Barrar of Iron Hill Brewing Company in Media, PA. It takes on the delicious combination of dark and sour. A sexy brownish-black in a pint glass with a half-finger camoflage-brown head, Dark Humor is aptly named. On the nose, chocolate milk (think Nestle Quick) and roasty malts are yummy and almost, just almost, hide the whiff of sour cherry. That cherry's not shy on the palate though. Delicious sour fruit cuts right through the milky texture,…