I'm going to argue for Toxicology.
I have a bunch of stories of things they've told me, but the two most egregious:
1) Citalopram ingestion, already with QTc prolongation on initial EKG, gets to the PICU and I give a dose of mag preemptively. Tox fellow tells me that she would have waited until the patient had an arrhythmia, then checked labs, then repleted only if levels were low...I realize the mag may not have prevented anything, but the negatives are limited and I surely prefer not to have to deal with torsades, so if there was any benefit seems worth it.
2) had another ingestion that wasn't recovering as quickly as we had hoped. We're around 22 hours post ingestion, tox fellow thinks pills are still being absorbed in the GI tract and suggests giving more activated charcoal...really wanted to tell them that's not how GI motility works