The gemara concludes that it is a tannaitic debate whether the worker’s rights to eat on the job are considered an added wage or a God given gift. Is a watcher of a field considered “working” to the extent that he can eat from the field or not? There is debate about how to view his work. The mishna discusses the 4 types of watchmen. One who gets paid for watching is responsible for circumstances beyond his control. Rabba and Abaye about what level of “out of his control” is necessary in order for him to be exempt. Is he expected to go beyond what is expected of a regular watchman since he is getting paid (Abaye) or not (Rabba)?