Fine Gael TD Regina Doherty has revealed a man threatened to burn down her house with her children in it.
The threat was made a number of years ago.
The Meath East representative made the revelation while speaking in relation to a suspected arson attack on the office of her Fine Gael colleague and Mayo TD Michelle Mulherin.
Deputy Doherty said she was grateful gardaí had tracked down the man who threatened her.
"He saw fit to ring my office and tell me he was going to burn my family home down with my children in it," she said.
"I have four small children at home and I love this job and everything but nothing comes before their safety. The gardaí were superb and were able to track down this particular individual."
Speaking also on the heckling of President Michael D. Higgins outside a school in Dublin, she said: "It's an all-time low."
Deputy Doherty said there were plenty of ways for people to demonstrate without resorting to taunts and abuse.
"They can come to our offices and talk to us, or demonstrate peacefully," she said.
Speaking to the Irish Examiner, Anti-Austerity Alliance TD Paul Murphy defended the groups right to protest. However he said he did not support the "personalised comments" used by some demonstrators.
President Higgins was referred to by one protester as a "little midget parasite".
Deputy Doherty said: "It’s even lower for an elected representative to think it's OK to treat our President that way."