Not an excuse for being daft.. but a sense of proportion might help here...
I worked for four years in a Lead Refinery. We melted, smelted, and refined scrap lead in 50 ton batches, using assorted methods usually involving stirring delights such as caustic soda, sulphur, ammonium nitrate etc., into the molten lead. We turned the purified lead into pig lead, pipe, sheet, blocks etc. We smelted the resulting drosses in a rotary furnace, to recover lead.. and the 'contaminants' we had refined out of the lead. Almost all of them more toxic than lead and including, antimony, tin, arsenic, tellurium, silver and even gold.
All of the above was achieved wearing (when we could be 'arsed') simple dust masks.
We were tested periodically for blood lead levels and I always seemed to come out just below the legal limit. Getting sense out of the Docs who did the testing.. regarding things like margin for error.. or why they were only testing for lead. when the other metals were far more toxic.. was greeted with looks of disbelief.
But.. I have no evidence I sustained any lasting damage from exposure probably many thousands of times higher than many will ever experience.
However... children are far more susceptible to lead toxicity. Look after them.