Exactly where did you folks get the toxic idea, been to California lately or something. Creosote and its active ingredients have been used for centuries for medicinal purposes. IT is still used today in cough syrup expectorants. The latest study done in 2005 with creosote plant workers determined that they exhibited no more dangers from cancer or other diseases than any one not associated with the material.
Yes it will blister you if you get the fresh material on you and not removed. By repeatedly dosing a rat daily for weeks in the same spot it produced lesions which is where the "holy crap lets ban that product police" got their info from. There is absolutely no reason to fear contamination of vegetables from creosote as it is almost completely insoluable in water (it is afterall a TAR which is solid at room temps) as compared to the chemicals used to treat lumber to prevent rot which are water soluable as that is what they are mixed with to inject into the lumber. Anything that is water soluable will leach from the product that it is on. Used crosss ties have most of the surface creosote worn off from years of weathering so there is not much chance of even getting any blistering on you skin from handling them without gloves but good leather gloves might help keep the black soot off and keep splinters out of your hands.
Some of you guys need to do a little more thorough research before you make statements as fact, based on hearsay from some other poster who did the same thing. If creosote was so toxic I am sure the FDA would have banned it long ago from Liquid Smoke for meat, cough syrup and even some disinfectants use creosote as an ingredient.