I had a lecturer (for a fairly advanced set theory course) who said he told his young son, when teaching him to count, that he, as a set the theorist, ‘doesn’t

I had a lecturer (for a fairly advanced set theory course) who said he told his young son, when teaching him to count, that he, as a set the theorist, ‘doesn’t do finite’. I guess when his son got to school 1+2 might have been ‘the successor of 2’, but anything else would have been ‘less than omega’.