dominika petrinova , from czech republic , was furious after her boyfriend erik meldik 's prank , which went viral after he posted it online .
the 27-year-old had burst into tears when she was told her dog sam had accidentally been put in the wash before mr meldik revealed the ` joke ' and that her beloved pet was safe and sound .
ouch ! erik meldik screamed in pain as he tried to pull himself free .