Passive smoking? Let's investigate
I have done a scientific study and despite using several different types of cakes in several different office locations, at no point did the cake move towards me. Several colleagues verified this. With 100% reproducibility we had to move to the cake and actively eat it. At no point did cake enter our bodies without active deliberation on our part, so I am at a loss (well, not in the calorie sense) to see the equivalence with passive smoking. I'll keep trying though.