Dreams involving personal items, like your baseball bat, can often symbolize aspects of your identity or personal power. In this case, the baseball bat might represent your ability to assert yourself or take action in a situation. The fact that it was at someone else's house and destroyed could indicate feelings of vulnerability or betrayal regarding that person.

This dream might suggest that you feel your capabilities or confidence are being undermined by someone close to you, or that you have concerns about how they perceive you. It could also reflect a fear of losing control over a situation in your waking life.

Consider your current relationship with this person and any recent interactions that might have triggered these feelings. It may be worthwhile to address any unresolved issues or communicate your feelings to them, as this could help restore your sense of empowerment.