Stuff like searching for a dog, repairing a roof, or looking after a baby.
There are plenty of other people for those kind of jobs that aren’t adventurers.
Rather, given that there are also a guilds for handling such kind of jobs, it is better to go registering there if you want to do such jobs.
For walking dogs there is the guild related to pets, though it is small-scale.
For repairing a roof there is the carpenter’s guild.
For taking care of a baby there is a guild divided into dispatching maids and babysitting.
Therefore it would end up in picking a fight with them if adventurers got involved in those jobs.