Not because of drinking but....
At the very beginning of my grepo experience I had a few inactives on my island that I used to farm and hide troops when needed.
However once I forgot I hid troops in one of them and send attack for regular farming...the result was painful...
Second, we were doing op, timing attacks and so....not sure how it happened but I sent one of the attacks as support.
Sent it and closed grepo for real live engagement.
Managed to log just before it arrives and then realised what was going on.
No big harm because I withdraw it immediately...but wonder how the victim has been laughing...
Oh and once I was looking at report and intending to cast on the friendly city, I cast Patroness on the enemy city.
Good my leader saved me from blushing when he cast too and msged the enemy asking him if he needs more help, because obviously he was drained by us.