Touching without washing, tying a tie, afternoon nap
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Question
Several questions. 1: How is it permissible to eat food that has been touched by the hands of secular people, etc. (like in restaurants), since they do not perform the morning hand washing, and it is forbidden to touch food before washing hands, etc. 2: Is it permissible to tie a tie on Shabbat? 3: Is there really an issue with taking an afternoon nap (whether during the interim period when it's somewhat important to rest or just in general), as it seems from the Shulchan Aruch that it's better not to sleep, and what does this mean, is it really better not to sleep, and if so, can I only sleep for half an hour or a little more?
Answer
Shalom and blessings
1. After the fact, touching with unwashed hands does not prohibit the food.
2. A knot that can be undone with one pull, which is the case with a tie, is permitted.
3. It all depends on what a person needs.