Successful accidental open fermentation experiment

For anyone interested: I had a batch - Vienna/Hallertau SMASH - going at a buddy's house, knew it had started strong, didn't look in for 15 days. Checked it yesterday, noticed that the internal cap piece of my 3 piece airlock was missing - it had been open the whole time. Grabbed a sample with my thief - tasted fantastic.
I had pitched a strong starter of Wyeast 1056 into the small beer (OG 1.042), which is now at 1.013.
Dry hopped with an ounce of the In-Bev/AB giveaway hops; bottle in one week.

The middle piece of the 3 piece airlock? I doubt much got in, especially during primary where Co2 was pushing out of the airlock, pushing baddies away.

Glad the beer turned out well!

That is not open fermentation... that is a missing middle piece...

Good job on the good beer though!