A scrim will appear entirely opaque if everything behind it is unlit and the scrim itself is grazed by light from the sides or from above. A scrim will appear nearly transparent if a scene behind it is lit, but there is no light on the scrim. A dreamy or foggy look can be achieved by lighting a scene entirely behind a scrim.
Food or small objects can cause choking if they get caught in your throat and block your airway. This keeps oxygen from getting to your lungs and brain. If your brain goes without oxygen for more than four minutes, you could have brain damage or die. Read more on MedlinePlus.gov.
Food allergies or sensitivity to food chemicals. Allergic foods may be primary causes of seizures, or they may act as triggers only. Any food can be a culprit, although wheat, soy, sugar, and dairy are the most common ones. Food additives such as MSG or aspartame may contribute to seizures, in some cases.