Why should we concern ourselves with lab safety?  Many experienced scientists who have not experienced lab incidents that involved injury or death are reluctant to adopt "modern" lab safety techniques since their own experience of not adhering to current guidelines and recommendations has not (yet) caused a problem.  However, there are many stories of lab accidents that could have been averted, or the damage minimized or reduced, but following current lab safety rules.  The link above categorizes many of these incidents.