First it is a very bad idea to put you fingers in the mouth of a siezing dog. 1 the do not and will not swollow their tugues. A siezure cause muscle to contract. If the muscle of the jaw were to contract it could induce very serious injury to the hand.
I will not say its common but a single siezure episode is not a big deal. repeated siezure even over a long time span are. But their are a number of anticonvulsants that often are very effective at controling siezure in dogs if it becomes necessary. Their are certain medical condition that can lead to siezures on of the more common one in older dogs hypothyroidism. A toxin is another posible cause of a single siezure
Substances that cause Seizures
