What are the reasons behind each laboratory safety rule?

Here are the reasons for each laboratory rule: a) Do not use chemicals excessively: To minimize waste and reduce potential hazards from large quantities. b) Do not wash your hand with any unknown liquid: To prevent skin irritation, burns, or absorption of toxic substances. c) Close all taps before leaving the laboratory: To prevent water wastage and avoid flooding. d) Spilled liquids must be cleaned immediately from the floor: To prevent slips, falls, and contamination. e) Do not walk barefooted in the laboratory: To protect feet from broken glass, chemical spills, or falling objects. f) Do not drink any unknown liquid in the laboratory: To prevent accidental poisoning from toxic or corrosive substances. g) Do not smell any unknown gas with the nose very close to the gas: To avoid inhaling toxic or irritating fumes directly. h) Do not add water to concentrated acids when diluting the acids: To prevent a violent exothermic reaction that can cause splashing and burns. i) Do not work with a broken test tube: To prevent cuts and ensure the integrity of the experiment. j) Step down the mains voltage (240V) before use in experiments with small light bulbs in the circuit: To prevent electric shock and avoid burning out the light bulbs. k) Do not smoke in the laboratory: To prevent fires or explosions and avoid contamination of experiments. l) When using Bunsen burner strike the match first before turning the gas on and not vice versa: To prevent gas buildup which could lead to an explosion or flashback. m) Do not eat in the laboratory: To prevent ingestion of chemicals and contamination of food. n) Always prepare poisonous gases in fume chamber: To contain and vent toxic gases safely, protecting the user and others from inhalation. Send me the next one 📸