Yes I want others to learn from my stupidity!
What I had found in a search was:
Nice review info. Oracle. One thing that's a bit exagerrated though is the part about having a stroke or heart attack from oil injection into a blood vessel. Venous blood enters the right side of the heart, it goes through the right atrium to right ventricle, then via the pulmonary artery to the lungs to be oxygenated, then to left atrium and ventricle, then out the aorta to supply the rest of the body. Any oil getting injected in a vein will get stopped / filtered when passing through the very fine pulmonary capillaries when it goes through the lungs. Thus, it may make you cough and can cause some lung injury / inflammation, even resulting in shortness of breath, but very little if any will make it to the left side of the heart. As a result, there will be no oil in the blood flowing to the brain via the carotid or vertebaral arteries (therefore no risk of stroke from oil) and similarly no oil getting to the coronary arteries coming off the base of the aorta and supplying the heart (therefore no risk of "heart attack" - myocardial infarction - from oil). There of course could be rare exceptions where the right and left sides of the heart are connected directly (patent foramen ovale, atrial septal defect, ventricular septal defect, etc.) that would allow oil to cross to the systemic circulation ("paradoxical embolus") without being 'filtered' through the lungs, but you'd almost certainly know if you had one of those conditions.