Angry German Kid

The angry german kid (A.K.A Leopold Slikk/Slikk.de.vu guy/Keyboard_Crasher) was famous for making a video of him raging over unreal tournament.
He is known to be in the Baby Einstein episode "Teachers Pay Teachers" where he kills Bard by annihilating him with his keyboard. therefore breaking his "BLAAAH" mid-way, followed by his quote "That's what you get for giving me nightmares for years!". He used to be one of the owners of maddie's diary before marx obtained it from him, as this can be confirmed in Teachers Pay Teachers after he kills bard.