Chemical engineers do it in packed beds. Chemists do it in test tubes. Chemists do it in the fume hood. Chemists do it periodically on table. Chemists do it reactively.
Chemists like to experiment.
Electrochemists have greater potential. Polymer chemists do it in chains. Toxicologists do it till they're half-dead. Chemists have nice reactions. Old chemists never die, they just fail to react.