Well that sounds like a big fat bunny bummer. Your lilies will not bloom again this year if the tops were nipped off. The good news is this allows all the foliage energy to go into the bulb so that next year your flowers will be much larger and the plants more vigorous. Try sprinkling red pepper flakes onto the top growth in the spring to keep the taste testers away from your lily buds. Keep growing, Marianne Binetti