Gas engineers may also encounter harmful situations corresponding to canine, verbal abuse and even physical violence from the basic public or be unable to get help in an emergency. http://azt.ggeek.ru/azt-zbt.php?p=ggeek&backurl=http%3A%2F%2Fwww.murakamilab.tuis.ac.jp%2Fwiki%2Findex.php%3Flockcough71