Essex Trading Standards are warning parents to keep their children away from Halloween fangs this year – as they could damage wearers' chances of having offspring in the future.
The authority says that the fangs contain high levels of phthalates, a substance that is added to increase flexibility and durability, which can cause reproductive problems.
In the run-up to the scariest night of the year, Essex Police are also warning people that while fun can be had, officers will be taking a "firm approach" to those who cause problems for others, who perhaps do not find it such a fun evening.
Inspector Paul Seabright said: "We understand that children and young people find this time of year exciting and fun, however many members of your community find Halloween and Bonfire Night very stressful.
"It's important that all of us consider the feelings and needs of the most vulnerable in our towns and villages. What might seem like fun and being mischievous to young people can be frightening for others.
"The throwing of items at houses or playing practical jokes on neighbours who are not known to you or have not agreed to participate in trick or treat is unacceptable and in many cases may be criminal in nature."
He added that pre-arranging visits to friends and neighbours could be preferred, particularly if there are elderly people living in the area.
"The most important message is that we want all children and young people to enjoy Halloween and Bonfire Night by keeping themselves safe and making sure they do not cause problems in their communities," he added.
Residents should call 101 if they feel concerned throughout the evening.
