diff --git a/plugins/dice.go b/plugins/dice.go
index a3898cc..ab4dc13 100644
--- a/plugins/dice.go
+++ b/plugins/dice.go
@@ -43,6 +43,10 @@ func (p *DicePlugin) Message(message bot.Message) bool {
 			dice = strings.Split(parts[1], "d")
 		}
 
+		if dice < 1 || sides < 2 {
+			p.Bot.SendMessage(channel, "You're a dick.")
+		}
+
 		if len(dice) == 2 {
 			// We actually have a die roll.
 			nDice, err := strconv.Atoi(dice[0])