Would it be worth it to get a GFCI breaker?

Something like this.
http://www.globalindustrial.com/p/electrical/circuit-breakers/molded-case-circuit-breakers/siemens-breaker-20a-1p-120v-10k-qpf-gfci-5ma?utm_source=google_pr&utm_medium=cpc&utm_campaign=VL-Molded-Case-Circuit-Breakers-google_pr&infoParam.campaignId=T9F&gclid=CNOIve2A0bcCFWcV7Aod5GQAgA