How did patronage affect beethoven's work?

Although Beethoven made some money from teaching, public performances, and from the publication of his works, he was in dire need of financial support for his compositions and performances, so he had to also depend on the generosity of patrons. He did private performances for them and he would usually give them exclusive copies of works they commissioned months prior to their publication.

Generally spontaneous human combustion is something that still bewilders some, human combustion happens very rarely and doesn't affect the surrounding areas, so unless you want to set your self on fire, human combustion will remain spontaneous and very rare.