One tell tale signs of an outright mugger is quite obvious. It's in their NAME. Take example, the name "Diana" seems pretty normal to any one. In fact, it was a royal name. But, consider this, what if, her siblings are called Triana and Monoana? Or even tetraana? SEE?
Mono-ana
Di-ana
Tri-ana
Tetra-ana
*GASPS*
The order of birth, followed by the fuctional group, -ana! They're named using chemistry methods! Imagine, the 8th sibling would be called nonaana!