Various masaail of Salaah

Unintentionally swallowing blood

Q: If one felt the taste of blood in the mouth and eventually so he went to bathroom and spat out and there was discoloured saliva and didn’t seem to see blood and swallowed intentionally as he didn’t think there was blood but it tasted like blood. So most likely he would have consumed blood but not intentionally. Does this mean his salah may not be accepted for 40 days because of consuming this blood?

Walking in front of person who is performing salaah

Q: If a person is praying salah and you wish to go past them, is any of the following ways permissible? 

(a) You walk in front of them, stop for a while (say, 10 seconds) and then continue past them. 

(b) You walk in front of them, sit down, then stand up and then continue past them. 

(c) You walk in front of them, perform 2 rakat of nafl salah and when finished, continue past them.