Nothing you can do there. Some people are so bad they need to do these terrible plays to be able to build stacks. They can't play post flop because they don't trust their skills so they just auto shove pre flop whenever they like their hands. These players are what makes live poker a lot more fun than online. People do these random plays for absolutely no reason. Most of the time they end up trapping themselves because only better hands can call their ugly shove.
Of course it's frustrating when you lose, but 18% can't win everytime