Big brother is watching you
The rivalry between brothers and sisters is as old as humanity; they may have a lasting and unconditionally loving relationship, but siblings are also competitive, as this photo demonstrates. When his sister took his $20 without asking, this guy decided on what he knows best: a practical joke on his sister to teach her a lesson. Of course, these pranks are always safe, but they’re just aggravating enough to get the message through.
He has access to her laptop, and he understands her vulnerabilities – the biology project she’s been working on for weeks. It didn’t take long to hatch this sinister scheme, and I’m sure the girl’s face when she attempted to submit her study only to discover it was missing.