Watford manager Walter Mazzarri slammed the complacent attitude of his players after they threw away a one-goal lead to lose 2-1 to Gillingham in the EFL Cup second round.
After Odion Ighalo broke the deadlock, the Hornets rode their luck when Bradley Dack missed a penalty at the other end. But they did not heed their warning, as Mark Byrne sent the tie to extra time and Dack made amends with a winner for the League One club.
Mazzarri said: "I am massively disappointed. Especially for the fans who don't deserve to see us losing like that.