It seems to me that sotapanna level is not so high (for a buddhist) as some may think..At this, a number of the Sakyans, whenever they met each other or came together in company, were indignant and angry, and said scornfully: "A fine thing, a marvelous thing! Nowadays anyone can become a Stream-Winner, if the Blessed One has proclaimed Sarakaani who died to be Stream-Winner... assured of enlightenment! Why, Sarakaani failed in his training and took to drink!"
"Why, Mahaanaama, if these great sal trees could distinguish what is well spoken from what is ill spoken, I would proclaim these great sal trees to be Stream-Winners... bound for enlightenment, how much more so then Sarakaani the Sakyan! Mahaanaama, Sarakaani the Sakyan fulfilled the training at the time of death.' http://www.accesstoinsight.org/tipitaka ... .wlsh.html
By the way, Sotapanna is a pair, not a single person. So there are those sotapattimaggas and sotapattiphalas. Former didn't even remove 3 lower fetters, but even with that they head for nibbana for sure, like, as it seems, in a case with Sarakani. At the moment of death, as it seems, they will drop 3 fetters, and that is why they also can be called Sotapannas.
And more closely to this topic.. "When, for a disciple of the noble ones, these five forms of fear & animosity are stilled; when he is endowed with these four factors of stream-entry; and when, through discernment, he has rightly seen & rightly ferreted out this noble method, then if he wants he may state about himself: 'Hell is ended; animal wombs are ended; the state of the hungry shades is ended; states of deprivation, destitution, the bad bourns are ended! I am a stream-winner, steadfast, never again destined for states of woe, headed for self-awakening!'"http://www.accesstoinsight.org/tipitaka ... .than.html