Great you've made it through without loosing precious stuff but it may be best to take it as a warning to get your site more secure in case the beer bandits start blabbing about what they saw to their cronies?.
S/S Latch blocker plates are cheap to help evade outswing doors from being pryed open also cheapo child alert alarms that hang on the doorknobs may scare 'em off for the interim then if you're not going w/ an alarm co. monitoring system, consider a Detex brand or other commercial type hard wired or battery powered units available at Locksmith shops and elsewhere..
~ Pete