Claus eats mayo for EVERYTHING , he's a VERY picky eater

He would hide his accent since it made it harder for people to understand

Surprisingly enough , he hated horror movies and preferred comedies

Though he finds pleasure in his experiments , his main goal is immortality

Claus liked to keep his hair tied back when doing official business

When first meeting , he prefers to be addressed "Mr. Fischer"

Claus often finds himself talking to his "mother" when bored and alone

When agitated and or inspired , he'd slip and his accent will show , he may even speak german

Claus has requirements that each subject of his must fill to be considered

He refuses to recognize his subjects as anything less than honored guests in his home , refusing to call them "victims"

Claus doesn't look for love , he believes there isn't a human alive who could love him without wanting to change him

Though it's hard to believe , Claus would claim to "love" his subjects/tests

He has a very twisted definition of love , what he believes is love is a sadistic ecstasy he gains from experimenting on his subjects

Preference ? He prefers men though women are fine too

Claus sees his body as a tool to gain what he wants , not caring to use it to his advantage if it meant he'd get what he wanted in the end

After intimate relations , he can be seen smoking cigarette (especially if it was mainly to use his body as a tool)