I am currently fighting the dogs in the prison yard. The dogs are using cowardly attack. However, they are getting the bonus damage when attacking me while I am faced towards them. I did a search on Cowardly and didn't find this issue, so I'm sorry if this is a known bug.
I just did this adventure. Unable to repro your case, are you sure you are facing them ? Its easy to mistake unit orientation...try posting the battle log from console ? Follow the steps here: http://www.cardhunter.com/forum/threads/how-to-report-bugs.331/
Is there a way to get logs after I closed the window? ( This was last night, I got past it and played for about an hour or so longer after I posted this ) I looked at the console just now and it doesn't have anything from last night. I'm pretty certain I was facing them as I had just attacked one of them. ( the three of them were in a line, I attacked the one in the middle )
Sorry, no, logs only persist while the client is open. Post here if you see it again though. A screenshot would be best.