I looked up redundand in the dictionary, it said "see redundant"
what? you said the same thing twice...
Let me explain in RedRyder terms.... Hold on for graphic explanation...
1. The first note meant you were using an object to make yourself hard. (Hand - yours or another's, Mouth - likely another's... or else C'mere.... :ninja)
2. The second implies that you caused said hardness to occur by means of mental stimulation (Dirty magazine, internet porn, reading RedRyder's posts at times, etc.)
Now go wash your hands and hurry back, k?